Z.ai

Z.ai GLM 4.5

Z.aiCompact
ThinkingTool UseStructured Output

About this model

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)

Performance Tier

Compact

Z.ai GLM 4.5 is a compact model from Z.ai : optimized for speed and affordability.

Small, fast, and affordable. Optimized for speed and low cost, great for high-volume or simple tasks.

Pricing

This model is included in Elosia plans
Typeper 1M tokens
Input (prompt)$0.600
Output (completion)$2.20
Cache read$0.110

Capabilities

Context Length131K
Max Output Tokens98K
TokenizerOther
Inputtext
Outputtext
Release DateJuly 25, 2025

Benchmarks

General Intelligence
MMLU
76.5%
MMLU-Pro
84.6%
Mathematics
MATH-500
62%
Programming
HumanEval
65%
LiveCodeBench
72.9%
Reasoning
Humanity's Last Exam
14.4%

Recommended Use Cases

General ChatTranslationSummarization

Strengths

  • Affordable entry point to the GLM family
  • Good bilingual Chinese/English performance
  • Suitable for everyday conversation and translation

Limitations

  • Older model — GLM 4.7 recommended for new projects
  • Limited performance on complex tasks

Resources

This model may use your data for training

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