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AI models
zai

GLM-5.3

AI model Released

API mode
Chat*
Context window
1,048,576 tokens
Maximum output
128,000 tokens*
Open weights
Yes

Capability & preference

General capability · ECI

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

GLM-5.3 156.9* GLM-5.3 · 95% interval 154.8–159.2

Model performance

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

GLM-5.3

Radar task score

58.4* / 100

4/4 core tests · experimental v1

6 benchmark results for this configuration

Scientific reasoning

GPQA Diamond · 25%

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

GLM-5.3 90.9*% Approx. 95% interval: 87.8–94.0%

Novel problem solving

Mystery Game Puzzles · 25%

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

GLM-5.3 33.0*% Approx. 95% interval: 23.7–42.3%

Advanced mathematics

FrontierMath Tiers 1-3 · 25%

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

GLM-5.3 68.8*% Approx. 95% interval: 63.4–74.2%

Factual answers

SimpleQA Verified · 25%

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

GLM-5.3 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.

GLM-5.3 91.1*% Approx. 95% interval: 84.3–97.9%

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.

GLM-5.3 29.3*% Approx. 95% interval: 15.2–43.4%

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.

Run it locally

Inference · memory estimate

GLM-5.3

Not enough verified architecture information for a reliable VRAM estimate.

Capabilities

Context window
1,048,576 tokens
Maximum input
1,000,000 tokens*
Maximum output
128,000 tokens*
Reasoning
Yes*
Tool calling
Yes*
Open weights
Yes
API mode
Chat*
Prompt caching
Yes*
Tool choice
Yes*
Model license
other

Input modalities

  • text

Output modalities

  • text

Processing & platform

Architecture
glm_moe_dsa

System configuration

Detailed specifications

Specifications · 12 fields
cache creation input token cost
0*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
2.6e-7*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
1.4e-6*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
1,000,000*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
4.4e-6*
Scope and conditions
native_context
provider
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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
zai*
mode
chat*
full_native_model_id
zai/glm-5.3*
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