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AI models

openai

GPT-5 Nano

AI model Released Aug 7, 2025

API mode: Chat^*
Context window: 400,000 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 Nano 139.3^* GPT-5 nano · 95% interval 134.3–141.5

Human preference · Arena

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

GPT-5 Nano 1319.9 GPT-5 nano (High) · 95% interval 1313.0–1326.7 · 8,134 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 Nano

Tested configuration Radar task score

Unrated

Older results · no current score

6 benchmark results for this configuration

Scientific reasoning

GPQA Diamond · 25%

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

GPT-5 Nano 69.4^*% Approx. 95% interval: 64.0–74.9% · 2025-10-30 · Older result

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 Nano 8.0^*% Approx. 95% interval: 2.7–13.3% · 2026-08-27

Advanced mathematics

FrontierMath Tiers 1-3 · 25%

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

GPT-5 Nano 20.0^*% Approx. 95% interval: 15.3–24.7% · 2026-06-12

Factual answers

SimpleQA Verified · 25%

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

GPT-5 Nano 11.7^*% Approx. 95% interval: 9.7–13.7% · 2026-08-10

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 Nano 81.1^*% Approx. 95% interval: 72.0–90.2% · 2025-10-31 · Older result

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 Nano 2.4^*% Approx. 95% interval: 0.0–7.2% · 2026-06-12

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.

Test version

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

GPT-5 Nano

1,355.88 rating

Confidence interval: 1,329.95 – 1,381.80

512 votes

Oct 28, 2026

Category: chinese
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,350.82 rating

Confidence interval: 1,336.23 – 1,365.40

1665 votes

Oct 28, 2026

Category: coding
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,249.26 rating

Confidence interval: 1,229.57 – 1,268.95

910 votes

Oct 28, 2026

Category: creative_writing
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,321.55 rating

Confidence interval: 1,311.69 – 1,331.40

3581 votes

Oct 28, 2026

Category: english
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,268.10 rating

Confidence interval: 1,258.63 – 1,277.56

5887 votes

Oct 28, 2026

Category: exclude_ties
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,321.18 rating

Confidence interval: 1,289.08 – 1,353.27

338 votes

Oct 28, 2026

Category: expert
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,326.69 rating

Confidence interval: 1,285.66 – 1,367.72

206 votes

Oct 28, 2026

Category: german
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,328.24 rating

Confidence interval: 1,318.56 – 1,337.92

3782 votes

Oct 28, 2026

Category: hard_prompts
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,338.58 rating

Confidence interval: 1,324.19 – 1,352.98

1694 votes

Oct 28, 2026

Category: hard_prompts_english
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,310.77 rating

Confidence interval: 1,295.36 – 1,326.19

1521 votes

Oct 28, 2026

Category: industry_business_and_management_and_financial_operations
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,268.63 rating

Confidence interval: 1,252.57 – 1,284.69

1358 votes

Oct 28, 2026

Category: industry_entertainment_and_sports_and_media
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,298.68 rating

Confidence interval: 1,271.71 – 1,325.64

470 votes

Oct 28, 2026

Category: industry_legal_and_government
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,319.03 rating

Confidence interval: 1,302.78 – 1,335.27

1309 votes

Oct 28, 2026

Category: industry_life_and_physical_and_social_science
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,326.89 rating

Confidence interval: 1,298.54 – 1,355.24

439 votes

Oct 28, 2026

Category: industry_mathematical
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,335.07 rating

Confidence interval: 1,308.11 – 1,362.02

470 votes

Oct 28, 2026

Category: industry_medicine_and_healthcare
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,344.91 rating

Confidence interval: 1,333.74 – 1,356.08

2810 votes

Oct 28, 2026

Category: industry_software_and_it_services
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,283.11 rating

Confidence interval: 1,269.01 – 1,297.22

1726 votes

Oct 28, 2026

Category: industry_writing_and_literature_and_language
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,306.04 rating

Confidence interval: 1,292.96 – 1,319.12

2023 votes

Oct 28, 2026

Category: instruction_following
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,226.65 rating

Confidence interval: 1,177.17 – 1,276.13

147 votes

Oct 28, 2026

Category: japanese
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,269.04 rating

Confidence interval: 1,228.46 – 1,309.63

225 votes

Oct 28, 2026

Category: korean
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,311.81 rating

Confidence interval: 1,297.43 – 1,326.20

1631 votes

Oct 28, 2026

Category: longer_query
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,318.26 rating

Confidence interval: 1,291.78 – 1,344.75

493 votes

Oct 28, 2026

Category: math
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,311.24 rating

Confidence interval: 1,295.58 – 1,326.90

1420 votes

Oct 28, 2026

Category: multi_turn
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,312.63 rating

Confidence interval: 1,303.84 – 1,321.42

4551 votes

Oct 28, 2026

Category: non_english
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,319.89 rating

Confidence interval: 1,313.05 – 1,326.74

8134 votes

Oct 28, 2026

Category: overall
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,313.14 rating

Confidence interval: 1,288.20 – 1,338.09

572 votes

Oct 28, 2026

Category: polish
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,296.28 rating

Confidence interval: 1,272.70 – 1,319.86

601 votes

Oct 28, 2026

Category: russian
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

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

GPT-5 Nano

1,360.34 rating

Confidence interval: 1,321.17 – 1,399.52

237 votes

Oct 28, 2026

Category: spanish
Evaluated configuration: GPT-5 nano (High)
Evaluation type: human preference

Arena text preference / chinesehuman preference · 2026-10-15 · rating

GPT-5 Nano

1,356.01 rating

Confidence interval: 1,330.08 – 1,381.93

512 votes

Oct 15, 2026

Category: chinese
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / codinghuman preference · 2026-10-15 · rating

GPT-5 Nano

1,351.14 rating

Confidence interval: 1,336.55 – 1,365.72

1664 votes

Oct 15, 2026

Category: coding
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / creative_writinghuman preference · 2026-10-15 · rating

GPT-5 Nano

1,249.44 rating

Confidence interval: 1,229.77 – 1,269.12

911 votes

Oct 15, 2026

Category: creative_writing
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / englishhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,321.53 rating

Confidence interval: 1,311.67 – 1,331.38

3580 votes

Oct 15, 2026

Category: english
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / exclude_tieshuman preference · 2026-10-15 · rating

GPT-5 Nano

1,268.19 rating

Confidence interval: 1,258.73 – 1,277.65

5885 votes

Oct 15, 2026

Category: exclude_ties
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / experthuman preference · 2026-10-15 · rating

GPT-5 Nano

1,321.22 rating

Confidence interval: 1,289.12 – 1,353.32

338 votes

Oct 15, 2026

Category: expert
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / germanhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,326.62 rating

Confidence interval: 1,285.59 – 1,367.64

206 votes

Oct 15, 2026

Category: german
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / hard_promptshuman preference · 2026-10-15 · rating

GPT-5 Nano

1,328.43 rating

Confidence interval: 1,318.74 – 1,338.12

3779 votes

Oct 15, 2026

Category: hard_prompts
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / hard_prompts_englishhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,338.50 rating

Confidence interval: 1,324.11 – 1,352.90

1694 votes

Oct 15, 2026

Category: hard_prompts_english
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_business_and_management_and_financial_operationshuman preference · 2026-10-15 · rating

GPT-5 Nano

1,310.92 rating

Confidence interval: 1,295.51 – 1,326.33

1521 votes

Oct 15, 2026

Category: industry_business_and_management_and_financial_operations
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_entertainment_and_sports_and_mediahuman preference · 2026-10-15 · rating

GPT-5 Nano

1,268.57 rating

Confidence interval: 1,252.51 – 1,284.62

1357 votes

Oct 15, 2026

Category: industry_entertainment_and_sports_and_media
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_legal_and_governmenthuman preference · 2026-10-15 · rating

GPT-5 Nano

1,297.40 rating

Confidence interval: 1,270.42 – 1,324.38

469 votes

Oct 15, 2026

Category: industry_legal_and_government
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_life_and_physical_and_social_sciencehuman preference · 2026-10-15 · rating

GPT-5 Nano

1,318.66 rating

Confidence interval: 1,302.40 – 1,334.92

1307 votes

Oct 15, 2026

Category: industry_life_and_physical_and_social_science
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_mathematicalhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,325.99 rating

Confidence interval: 1,297.62 – 1,354.36

440 votes

Oct 15, 2026

Category: industry_mathematical
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_medicine_and_healthcarehuman preference · 2026-10-15 · rating

GPT-5 Nano

1,335.68 rating

Confidence interval: 1,308.70 – 1,362.66

470 votes

Oct 15, 2026

Category: industry_medicine_and_healthcare
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_software_and_it_serviceshuman preference · 2026-10-15 · rating

GPT-5 Nano

1,345.12 rating

Confidence interval: 1,333.94 – 1,356.29

2809 votes

Oct 15, 2026

Category: industry_software_and_it_services
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / industry_writing_and_literature_and_languagehuman preference · 2026-10-15 · rating

GPT-5 Nano

1,283.25 rating

Confidence interval: 1,269.15 – 1,297.34

1727 votes

Oct 15, 2026

Category: industry_writing_and_literature_and_language
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / instruction_followinghuman preference · 2026-10-15 · rating

GPT-5 Nano

1,306.05 rating

Confidence interval: 1,292.98 – 1,319.13

2023 votes

Oct 15, 2026

Category: instruction_following
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / japanesehuman preference · 2026-10-15 · rating

GPT-5 Nano

1,226.40 rating

Confidence interval: 1,176.92 – 1,275.89

147 votes

Oct 15, 2026

Category: japanese
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / koreanhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,269.29 rating

Confidence interval: 1,228.70 – 1,309.88

225 votes

Oct 15, 2026

Category: korean
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / longer_queryhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,312.33 rating

Confidence interval: 1,297.93 – 1,326.72

1628 votes

Oct 15, 2026

Category: longer_query
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / mathhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,317.44 rating

Confidence interval: 1,290.93 – 1,343.95

494 votes

Oct 15, 2026

Category: math
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / multi_turnhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,311.36 rating

Confidence interval: 1,295.69 – 1,327.03

1418 votes

Oct 15, 2026

Category: multi_turn
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / non_englishhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,312.80 rating

Confidence interval: 1,304.01 – 1,321.59

4550 votes

Oct 15, 2026

Category: non_english
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / overallhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,319.94 rating

Confidence interval: 1,313.09 – 1,326.78

8132 votes

Oct 15, 2026

Category: overall
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / polishhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,313.75 rating

Confidence interval: 1,288.79 – 1,338.70

571 votes

Oct 15, 2026

Category: polish
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / russianhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,295.89 rating

Confidence interval: 1,272.36 – 1,319.43

603 votes

Oct 15, 2026

Category: russian
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Arena text preference / spanishhuman preference · 2026-10-15 · rating

GPT-5 Nano

1,360.29 rating

Confidence interval: 1,321.11 – 1,399.47

237 votes

Oct 15, 2026

Category: spanish
Evaluated configuration: gpt-5-nano-high
Evaluation type: human preference

Run it locally

Inference · memory estimate

GPT-5 Nano

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

API cost

USD / month

Input tokens / monthOutput tokens / month

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

GPT-5 Nano

Provider offer

Capabilities

Context window: 400,000 tokens
Maximum input: 272,000 tokens^*
Maximum output: 128,000 tokens
Reasoning: Yes
Tool calling: Yes
Structured output: Yes^*
Open weights: No
Knowledge cutoff: 2024-05-30
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

Output modalities

text

System configuration

Detailed specifications

Specifications · 33 fields

cache read input token cost

5.0e-9^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.5e-9^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.5e-9^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

5.0e-8^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.5e-8^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.5e-8^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.5e-6^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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-nano^*
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

272,000^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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-nano^*
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-nano^*
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-nano^*
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

4.0e-7^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.0e-7^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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

2.0e-7^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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

Yes^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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-nano^*
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

No^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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-nano^*
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

No^*

Scope and conditions

native_context

provider: openai^*
mode: chat^*
full_native_model_id: gpt-5-nano^*
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