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AI models
openai

GPT-5.6 Luna

AI model Released

API mode
Chat*
Context window
1,050,000 tokens
Maximum output
128,000 tokens
Open weights
No

Capability & preference

General capability · ECI

A cross-benchmark capability estimate. Index points, not a percentage; intervals show uncertainty.

GPT-5.6 Luna 156.7* GPT-5.6 Luna · 95% interval 154.2–159.3

Human preference · Arena

Overall text preferences from head-to-head votes. Not factual accuracy or a task-success rate.

GPT-5.6 Luna 1431.0 GPT-5.6 Luna (xHigh) · 95% interval 1426.8–1435.3 · 41,317 votes · 2026-10-28

Model performance

Radar task score: four tests, equal weight. An experimental summary of these tasks, not a universal intelligence rating.

GPT-5.6 Luna

Radar task score

58.9* / 100

4/4 core tests · experimental v1

7 benchmark results for this configuration

Scientific reasoning

GPQA Diamond · 25%

Expert-written science questions; strict multiple-choice scoring. Chance accuracy is 25%.

GPT-5.6 Luna 91.6*% Approx. 95% interval: 88.2–95.0%

Novel problem solving

Mystery Game Puzzles · 25%

Best-next-move puzzles in an undisclosed game variant. A narrow reasoning test, not general intelligence.

GPT-5.6 Luna 21.0*% Approx. 95% interval: 13.0–29.0%

Advanced mathematics

FrontierMath Tiers 1-3 · 25%

Private v2 mathematics problems with Python tools. Earlier versions and Tier 4 are excluded.

GPT-5.6 Luna 82.1*% Approx. 95% interval: 77.6–86.6%

Factual answers

SimpleQA Verified · 25%

Correct factual answers under a guessing prompt, graded by a model. Not a hallucination or abstention score.

GPT-5.6 Luna 41.0*% Approx. 95% interval: 38.0–44.0%

Competition mathematics

OTIS Mock AIME 2024-2025 · Separate result

Competition problems with model-extracted answers checked against an exact key. Earlier grading procedures are excluded.

GPT-5.6 Luna 98.3*% Approx. 95% interval: 96.0–100.0%

Research mathematics

FrontierMath Tier 4 v2 · Separate result

The hardest private FrontierMath problems, corrected v2 set, with Python tools. Separate from Tiers 1-3 in the core score.

GPT-5.6 Luna 61.0*% Approx. 95% interval: 45.9–76.1%

Visual spatial reasoning

Furniture Assembly · Separate result

Assembly-error detection from photos and manuals, with zoom and Python tools. Uses model-assisted grading; not a general vision score.

GPT-5.6 Luna 42.5*% Approx. 95% interval: 30.0–55.0%

Bars show reported task scores. Whiskers are approximate 95% intervals where standard errors are available. Different reasoning budgets are not equal-cost tests. Missing results are never zero.

Recorded results

Only the same benchmark, version, workload, scenario and unit share a row. Missing results are not zero. System results include the full submitted hardware and software configuration.

Arena text preference / chinesehuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,471.32 rating

Confidence interval: 1,460.24 – 1,482.39

3211 votes

Category
chinese
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / codinghuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,466.44 rating

Confidence interval: 1,459.86 – 1,473.02

11209 votes

Category
coding
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / creative_writinghuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,396.00 rating

Confidence interval: 1,388.52 – 1,403.49

8613 votes

Category
creative_writing
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / englishhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,441.45 rating

Confidence interval: 1,435.77 – 1,447.14

16736 votes

Category
english
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / exclude_tieshuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,422.56 rating

Confidence interval: 1,417.02 – 1,428.10

30913 votes

Category
exclude_ties
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / experthuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,477.83 rating

Confidence interval: 1,468.67 – 1,486.99

4703 votes

Category
expert
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / frenchhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,456.71 rating

Confidence interval: 1,439.43 – 1,473.99

1365 votes

Category
french
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / germanhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,455.02 rating

Confidence interval: 1,432.37 – 1,477.67

720 votes

Category
german
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / hard_promptshuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,451.62 rating

Confidence interval: 1,446.63 – 1,456.61

27151 votes

Category
hard_prompts
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,460.35 rating

Confidence interval: 1,453.75 – 1,466.95

11022 votes

Category
hard_prompts_english
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,439.05 rating

Confidence interval: 1,431.61 – 1,446.50

7756 votes

Category
industry_business_and_management_and_financial_operations
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,401.41 rating

Confidence interval: 1,394.54 – 1,408.27

10831 votes

Category
industry_entertainment_and_sports_and_media
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,445.47 rating

Confidence interval: 1,434.83 – 1,456.11

3485 votes

Category
industry_legal_and_government
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,433.20 rating

Confidence interval: 1,425.33 – 1,441.08

6749 votes

Category
industry_life_and_physical_and_social_science
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_mathematicalhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,470.12 rating

Confidence interval: 1,457.30 – 1,482.93

2325 votes

Category
industry_mathematical
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,397.86 rating

Confidence interval: 1,386.40 – 1,409.32

3060 votes

Category
industry_medicine_and_healthcare
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,463.52 rating

Confidence interval: 1,457.72 – 1,469.32

16040 votes

Category
industry_software_and_it_services
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,418.92 rating

Confidence interval: 1,412.26 – 1,425.57

11315 votes

Category
industry_writing_and_literature_and_language
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / instruction_followinghuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,437.80 rating

Confidence interval: 1,431.75 – 1,443.85

14681 votes

Category
instruction_following
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / japanesehuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,415.74 rating

Confidence interval: 1,390.68 – 1,440.81

662 votes

Category
japanese
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / koreanhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,414.49 rating

Confidence interval: 1,393.12 – 1,435.86

795 votes

Category
korean
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / longer_queryhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,436.32 rating

Confidence interval: 1,430.61 – 1,442.02

19432 votes

Category
longer_query
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / mathhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,458.65 rating

Confidence interval: 1,445.04 – 1,472.27

1942 votes

Category
math
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / multi_turnhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,434.46 rating

Confidence interval: 1,426.45 – 1,442.46

6668 votes

Category
multi_turn
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / non_englishhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,417.06 rating

Confidence interval: 1,411.97 – 1,422.15

24577 votes

Category
non_english
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / overallhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,431.05 rating

Confidence interval: 1,426.78 – 1,435.32

41317 votes

Category
overall
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / polishhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,404.30 rating

Confidence interval: 1,380.58 – 1,428.03

626 votes

Category
polish
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / russianhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,427.80 rating

Confidence interval: 1,418.77 – 1,436.84

4734 votes

Category
russian
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / spanishhuman preference · 2026-10-28 · rating

GPT-5.6 Luna

1,445.10 rating

Confidence interval: 1,427.47 – 1,462.73

1207 votes

Category
spanish
Evaluated configuration
GPT-5.6 Luna (xHigh)
Evaluation type
human preference
Arena text preference / chinesehuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,469.38 rating

Confidence interval: 1,458.29 – 1,480.47

3218 votes

Category
chinese
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / codinghuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,466.36 rating

Confidence interval: 1,459.76 – 1,472.96

11127 votes

Category
coding
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / creative_writinghuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,396.14 rating

Confidence interval: 1,388.63 – 1,403.64

8603 votes

Category
creative_writing
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / englishhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,441.37 rating

Confidence interval: 1,435.67 – 1,447.06

16656 votes

Category
english
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / exclude_tieshuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,422.06 rating

Confidence interval: 1,416.50 – 1,427.61

30768 votes

Category
exclude_ties
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / experthuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,478.20 rating

Confidence interval: 1,469.01 – 1,487.38

4671 votes

Category
expert
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / frenchhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,457.89 rating

Confidence interval: 1,440.45 – 1,475.34

1348 votes

Category
french
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / germanhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,454.96 rating

Confidence interval: 1,432.00 – 1,477.92

707 votes

Category
german
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / hard_promptshuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,451.30 rating

Confidence interval: 1,446.30 – 1,456.29

27008 votes

Category
hard_prompts
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / hard_prompts_englishhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,460.21 rating

Confidence interval: 1,453.59 – 1,466.83

10955 votes

Category
hard_prompts_english
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,438.49 rating

Confidence interval: 1,431.02 – 1,445.97

7707 votes

Category
industry_business_and_management_and_financial_operations
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,401.74 rating

Confidence interval: 1,394.86 – 1,408.62

10794 votes

Category
industry_entertainment_and_sports_and_media
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_legal_and_governmenthuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,446.07 rating

Confidence interval: 1,435.40 – 1,456.73

3477 votes

Category
industry_legal_and_government
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,433.00 rating

Confidence interval: 1,425.10 – 1,440.89

6720 votes

Category
industry_life_and_physical_and_social_science
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_mathematicalhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,470.28 rating

Confidence interval: 1,457.44 – 1,483.12

2323 votes

Category
industry_mathematical
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,398.89 rating

Confidence interval: 1,387.39 – 1,410.40

3041 votes

Category
industry_medicine_and_healthcare
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_software_and_it_serviceshuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,463.47 rating

Confidence interval: 1,457.66 – 1,469.28

15935 votes

Category
industry_software_and_it_services
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,419.19 rating

Confidence interval: 1,412.52 – 1,425.87

11298 votes

Category
industry_writing_and_literature_and_language
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / instruction_followinghuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,437.31 rating

Confidence interval: 1,431.25 – 1,443.37

14621 votes

Category
instruction_following
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / japanesehuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,414.09 rating

Confidence interval: 1,388.55 – 1,439.63

644 votes

Category
japanese
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / koreanhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,415.96 rating

Confidence interval: 1,394.50 – 1,437.42

788 votes

Category
korean
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / longer_queryhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,436.52 rating

Confidence interval: 1,430.80 – 1,442.24

19367 votes

Category
longer_query
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / mathhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,458.97 rating

Confidence interval: 1,445.29 – 1,472.65

1927 votes

Category
math
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / multi_turnhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,433.82 rating

Confidence interval: 1,425.78 – 1,441.85

6622 votes

Category
multi_turn
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / non_englishhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,416.70 rating

Confidence interval: 1,411.60 – 1,421.80

24449 votes

Category
non_english
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / overallhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,430.66 rating

Confidence interval: 1,426.38 – 1,434.93

41109 votes

Category
overall
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / polishhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,404.29 rating

Confidence interval: 1,380.28 – 1,428.30

610 votes

Category
polish
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / russianhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,427.74 rating

Confidence interval: 1,418.68 – 1,436.79

4732 votes

Category
russian
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference
Arena text preference / spanishhuman preference · 2026-10-15 · rating

GPT-5.6 Luna

1,445.79 rating

Confidence interval: 1,428.08 – 1,463.51

1196 votes

Category
spanish
Evaluated configuration
gpt-5.6-luna-xhigh
Evaluation type
human preference

Run it locally

Inference · memory estimate

GPT-5.6 Luna

Closed weights. No supported local deployment or GPU requirement is published.

API cost

USD / month

Standard text-token estimate. Excludes taxes, caching, batch discounts, reasoning and multimodal surcharges. Provider limits and regional availability may differ.

GPT-5.6 Luna

GPT-5.6 Luna / Pricing tiers 8
Provider / scopeRateCurrencyAmount / unit
OpenAIgpt-5.6-lunaBatch long_context Cached inputUSD0.02 / 1M tokens
InputUSD0.2 / 1M tokens
OutputUSD0.9 / 1M tokens
OpenAIgpt-5.6-lunaBatch Cached inputUSD0.01 / 1M tokens
InputUSD0.1 / 1M tokens
OutputUSD0.6 / 1M tokens
OpenAIgpt-5.6-lunaFlex long_context Cached inputUSD0.02 / 1M tokens
InputUSD0.2 / 1M tokens
OutputUSD0.9 / 1M tokens
OpenAIgpt-5.6-lunaFlex Cached inputUSD0.01 / 1M tokens
InputUSD0.1 / 1M tokens
OutputUSD0.6 / 1M tokens
OpenAIgpt-5.6-lunaPriority Cached inputUSD0.04 / 1M tokens
InputUSD0.4 / 1M tokens
OutputUSD2.4 / 1M tokens
OpenAIgpt-5.6-lunaPriority long_context Cached inputUSD0.08 / 1M tokens
InputUSD0.8 / 1M tokens
OutputUSD3.6 / 1M tokens
OpenAIgpt-5.6-lunaStandard Cached inputUSD0.02 / 1M tokens
InputUSD0.2 / 1M tokens
OutputUSD1.2 / 1M tokens
OpenAIgpt-5.6-lunaStandard long_context Cached inputUSD0.04 / 1M tokens
InputUSD0.4 / 1M tokens
OutputUSD1.8 / 1M tokens

Capabilities

Context window
1,050,000 tokens
Maximum input
922,000 tokens*
Maximum output
128,000 tokens
Reasoning
Yes
Tool calling
Yes
Structured output
Yes*
Open weights
No
Knowledge cutoff
2026-02-16
API mode
Chat*
Image input
Yes*
PDF input
Yes*
Parallel tool calls
Yes*
Prompt caching
Yes*
System messages
Yes*
Tool choice
Yes*
Web search
Yes*
Model license
Proprietary

Input modalities

  • text
  • image
  • pdf

Output modalities

  • text

System configuration

Detailed specifications

Specifications · 59 fields
cache creation input token cost
2.5e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost above 272k tokens
5.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost above 272k tokens batches
2.5e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost above 272k tokens flex
2.5e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost above 272k tokens priority
1.0e-6*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost batches
1.25e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost flex
1.25e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache creation input token cost priority
5.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost
2.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost above 272k tokens
4.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost above 272k tokens batches
2.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost above 272k tokens flex
2.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost above 272k tokens priority
8.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost batches
1.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost flex
1.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
cache read input token cost priority
4.0e-8*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token
2.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token above 272k tokens
4.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token above 272k tokens batches
2.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token above 272k tokens flex
2.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token above 272k tokens priority
8.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token batches
1.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token flex
1.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
input cost per token priority
4.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
litellm provider
openai*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
max input tokens
922,000*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
max output tokens
128,000*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
max tokens
128,000*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
mode
chat*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token
1.2e-6*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token above 272k tokens
1.8e-6*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token above 272k tokens batches
9.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token above 272k tokens flex
9.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token above 272k tokens priority
3.6e-6*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token batches
6.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token flex
6.0e-7*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
output cost per token priority
2.4e-6*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
regional processing uplift multiplier eu
1.1*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
regional processing uplift multiplier us
1.1*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
search context cost per query
search_context_size_high
0.01*
search_context_size_low
0.01*
search_context_size_medium
0.01*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supported endpoints
  • /v1/chat/completions*
  • /v1/batch*
  • /v1/responses*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supported modalities
  • text*
  • image*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supported output modalities
  • text*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports function calling
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports minimal reasoning effort
No*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports native streaming
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports none reasoning effort
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports parallel function calling
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports pdf input
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports prompt cache breakpoint
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports prompt caching
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports reasoning
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports response schema
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports system messages
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports tool choice
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports tool search
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports vision
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports web search
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*
supports xhigh reasoning effort
Yes*
Scope and conditions
native_context
provider
openai*
mode
chat*
full_native_model_id
gpt-5.6-luna*
pricing_scope
Literal source field names and values retained; provider, region, cache/batch/threshold conditions and per-unit meaning must be checked. max_tokens is not automatically a context limit.*

* Provisional data