Z.ai: GLM 4.5 Air
Analysis Summary
Z.ai: GLM 4.5 Air sits in the Specialist tier on our leaderboard, ranked #118 of 544 published models on overall intelligence. At $0.130 input and $0.850 output per 1M tokens, it is among the most expensive on the market. It offers a standard large context window and supports tool use, function calling, and reasoning.
Editorial notes
GLM 4.5 Air delivers a 23.2 intelligence index with strong math (80.7) and reasonable agentic scores (33.5), tool use, and competitive pricing at $0.13/$0.85; a capable lightweight option though provider adoption outside its home market is limited.
Assessed May 5, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Z.ai: GLM 4.5 Air stack up?
Compare side-by-side with other specialist models.
Model Information
| OpenRouter ID |
z-ai/glm-4.5-air
|
| Provider | z-ai |
| Release Date | July 25, 2025 |
| Context Length | 131,072 tokens |
| Max Completion | 98,304 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.13 | $0.000130 |
| Output | $0.85 | $0.000850 |
Live Performance
Live endpoint metrics — refreshed every 30 minutes.
