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)
Undisclosed
Parameters
131K tokens
Context Window
Proprietary
License
Jul 25, 2025
Released
๐ฐ Pricing
Input
$0.60
per 1M tokens
Output
$2.20
per 1M tokens
API Available
This model is accessible via API for integration into your applications.
โญ Related Models
Claude 3.5 Sonnet
Anthropic
The model that defined a generation. Fast, smart, and incredibly capable across coding, analysis, and creative tasks.
Claude 3.5 Haiku
Anthropic
Ultra-fast and cost-effective. Best for high-volume tasks where speed matters more than peak intelligence.
GPT-4o Mini
OpenAI
Compact and affordable. Surprisingly capable for its price point, ideal for high-volume applications.