z-ai/glm-5

GLM 5

GLM-5 is Z.ai’s flagship open-source foundation model engineered for complex systems design and long-horizon agent workflows. Built for expert developers, it delivers production-grade performance on large-scale programming tasks, rivaling leading closed-source models. With advanced agentic planning, deep backend reasoning, and iterative self-correction, GLM-5 moves beyond code generation to full-system construction and autonomous execution.

2/11/2026

204,800 tokens

#6 Text (Korean)

Input: ¥180/M

Output: ¥570/M

Try in Chat Get API Key

Specifications

Modalities

Input

text

Output

text

Supported Parameters

frequency_penalty

include_reasoning

logit_bias

logprobs

max_tokens

min_p

presence_penalty

reasoning

repetition_penalty

response_format

seed

stop

structured_outputs

temperature

tool_choice

tools

top_k

top_logprobs

top_p

Max Output Tokens

131,072

Code Examples

curl https://api.fastmetal.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "glm-5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Leaderboard

Text

🏆OverallELO: 1,456

#20

🇨🇳ChineseELO: 1,527

🇰🇷KoreanELO: 1,442

🇬🇧EnglishELO: 1,469

#19

frenchELO: 1,472

#25

germanELO: 1,458

#15

spanishELO: 1,435

#35

russianELO: 1,444

#31

💻CodingELO: 1,491

#33

🧮MathELO: 1,455

#18

✍️Creative WritingELO: 1,442

#18

📝Instruction FollowingELO: 1,445

#23

🌶️Hard PromptsELO: 1,476

#25

💬Multi-TurnELO: 1,457

#28

Code

🏆OverallELO: 1,445