Z.ai: GLM 4.5

Z AiID: z-ai/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](https://openrouter.ai/docs/use-cases/reasoning-tokens#enable-reasoning-with-default-config)

Pricing per 1M Tokens

Input (Prompt)$0.60
Output (Completion)$2.20
Cache Read$0.11
Cache WriteFree
ImageN/A

Specifications

Context Length131K
Max Output Tokens98K
Input ModalitiesText
Output ModalitiesText
TokenizerOther
Instruct TypeN/A
Top Provider Context131K
Top Provider Max Output98K
ModeratedNo

Compare this model

See how Z.ai: GLM 4.5 stacks up against other models.

vs Z.ai: GLM 5 Turbovs Z.ai: GLM 5vs Z.ai: GLM 4.7 Flashvs Z.ai: GLM 4.7vs Z.ai: GLM 4.6V

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Last updated: March 23, 2026

First tracked: March 23, 2026