GL

GLM 5.1

Reasoning modelGLMGLM-5

GLM 5.1

Release date: 2026-03-27Updated: 2026-06-15 07:18:19.88410,392
Parameters
75.4B
Context length
200K
Chinese support
Supported
Reasoning ability

GLM 5.1 is an AI model published by 智谱AI, released on 2026-03-27, for Reasoning model, with 75.4B parameters, and 200K context length, requiring about 1.51TB storage, under the MIT License license, with a 95.30 score on AIME 2026.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

GLM 5.1

Model basics

Reasoning traces
Supported
Thinking modes
Thinking Mode (Default)Standard Mode
Context length
200K tokens
Max output length
125K tokens
Model type
Reasoning model
Modality (in / out)
Text → Text
Release date
2026-03-27
Model file size
1.51TB
MoE architecture
Yes
Total params / Active params
75.4B / 4B
Knowledge cutoff
No data
GLM 5.1

Open source & experience

GLM 5.1

Official resources

DataLearnerAI blog
No blog post yet
GLM 5.1

API details

API speed
3/5
💡Default unit: $/1M tokens. If vendors use other units, follow their published pricing.
Standard
TypeConditionInputOutput
Text-$1.40/ 1M$4.40/ 1M
Cache PricingPrompt Cache
TypeTTLWriteRead
Text5m$0.260/ 1M$4.40/ 1M
GLM 5.1

Benchmark Results

GLM 5.1 currently shows benchmark results led by HLE (13 / 159, score 52.30), AIME 2026 (3 / 15, score 95.30), SWE-Bench Pro - Public (10 / 44, score 58.40). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.

Thinking
Tool usage
Internet

General Knowledge

4 evaluations
Benchmark / mode
Score
Rank/total
GPQA Diamond
Thinking Mode
86.20
43 / 179
LiveBench
Standard Mode
70.18
37 / 115
HLE
Thinking Mode
31
71 / 159
HLE
Thinking ModeTools
52.30
13 / 159

Coding and Software Engineer

1 evaluations
Benchmark / mode
Score
Rank/total
SWE-Bench Pro - Public
Thinking ModeTools
58.40
10 / 44

AI Agent - Information Search

1 evaluations
Benchmark / mode
Score
Rank/total
BrowseComp
Thinking ModeToolsInternet
79.30
13 / 45

AI Agent - Tool Usage

4 evaluations
Benchmark / mode
Score
Rank/total
MCP-Atlas
Standard ModeTools
75.60
8 / 23
Terminal Bench 2.0
Thinking ModeTools
63.50
13 / 46
58.70
13 / 15
Tool Decathlon
Thinking ModeTools
40.70
3 / 7

Math and Reasoning

2 evaluations
Benchmark / mode
Score
Rank/total
AIME 2026
Thinking Mode
95.30
3 / 15
IMO-AnswerBench
Thinking Mode
83.80
11 / 20

Compare with other models

GLM 5.1

Publisher

GLM 5.1

Model Overview

GLM 5.1 is an AI model published by 智谱AI, released on 2026-03-27, for Reasoning model, with 75.4B parameters, and 200K context length, requiring about 1.51TB storage, under the MIT License license, with a 95.30 score on AIME 2026.

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