GLM 4.5
GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly enhanced capabilities in reasoning, code generation, and agent alignment. It supports a hybrid inference mode with two options, a "thinking mode" designed for complex reasoning and tool use, and a "non-thinking mode" optimized for instant responses. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. Learn more in our docs
z-ai/glm-4.5
- Context
- 131k tokens
- Completion cap
- 98,304
- Tools
- Yes
- JSON
- Yes
- Released
- 2025-07-25
Call it from Geek Hub
Same OpenAI SDK. Change the base URL and the model id.
curl https://api.geekhub.mx/v1/chat/completions \
-H "Authorization: Bearer $GEEKHUB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "z-ai/glm-4.5",
"messages": [{"role": "user", "content": "Hola"}]
}'Frequently asked questions
- What is GLM 4.5?
- GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly enhanced capabilities in reasoning, code generation, and agent alignment. It supports a hybrid inference mode with two options, a "thinking mode" designed for complex reasoning and tool use, and a "non-thinking mode" optimized for instant responses. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. Learn more in our docs GLM 4.5 runs on the Geek Hub API (OpenAI-compatible). Model id: z-ai/glm-4.5.
- Is GLM 4.5 free?
- No. Input is $0.654 per 1M tokens and output is $2.3981 per 1M tokens on Geek Hub (markup included).
- What is the context length of GLM 4.5?
- GLM 4.5 has a 131k tokens context window. It supports up to 98,304 completion tokens.
- Does GLM 4.5 support tool calling and structured outputs?
- GLM 4.5 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
- When was GLM 4.5 released?
- GLM 4.5 was released on 2025-07-25.
More models from Zhipu
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- GLM 4.5VGLM-4.5V is a vision-language foundation model for multimodal agent applications. Built on a Mixture-of-Experts (MoE) architecture with 106B parameters and 12B activated parameters
- GLM 4.6Compared with GLM-4.5, this generation brings several key improvements: Longer context window: The context window has been expanded from 128K to 200K tokens, enabling the model to
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