Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is GLM-4.5-Air?
GLM-4.5-Air is a model from Z.ai (Zhipu AI), Tsinghua University, released on Jul 20, 2025. Its SI-IQ is 114 (90% interval 91–137), estimated from 1 benchmark results by 1 independent evaluators.
This model has fewer than 5 independent benchmark results or fewer than 2 different evaluators, so it is shown but not ranked.
Facts
- Developer
- Z.ai (Zhipu AI), Tsinghua University
- Released
- Jul 20, 2025
- Access
- Open weights (restricted licence)
- Benchmarks used
- 1 results from 1 evaluators
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
| Benchmark | Score | Evaluated by | Source |
|---|---|---|---|
| τ²-bench Airline (OpenRouter run) | 68.0% | OpenRouter | OpenRouter benchmark datasets · data file |
Human preference (Arena)
On the Arena leaderboard, where people vote between two anonymous answers, GLM-4.5-Air has a rating of 1,373 (1,369–1,377) from 30,660 votes (published Oct 15, 2026). Human preference is a different measure from benchmark ability and is not part of SI-IQ. Arena (Hugging Face)
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Arena leaderboard dataset on Hugging Face (CC BY 4.0); Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter..