GLM 4.5
GLM 4.5 by Z AI is an open-source Mixture-of-Experts model built for agentic, reasoning, and coding tasks, with hybrid thinking and 128K context.
Model Overview
Capabilities, design details, and architectural traits
GLM 4.5 - Agentic, Reasoning, and Coding Foundation Model
GLM 4.5 is Z.AI's (Zhipu AI) open-source Mixture-of-Experts model built for agentic tasks, reasoning, and coding. It is positioned as a foundation model for intelligent agents, with a hybrid reasoning design that supports both thinking and direct response modes.
Defining Characteristics
- ARC positioning: The model is explicitly framed around Agentic, Reasoning, and Coding capabilities.
- Hybrid response behavior: It can produce either deeper thinking responses or direct responses depending on the task.
- Agent-focused design: It is optimized for agentic tasks and native function calling.
- Open release strategy: Z.AI released GLM 4.5 alongside a smaller GLM 4.5 Air variant to support broader research and deployment use.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Z AI | Anthropic | Anthropic |
| Release Date | July 28, 2025 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | Dec 2024 | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 131K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $0.60 Best Input Pricing | $4 | $2 |
| Output Pricing | $2.20 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | text | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 12.8 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | - | - | - |
| Agentic Index | - | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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