GPT-5.6 Sol vs GLM-4.5-Air
OpenAI GPT-5.6 Sol | Z.ai GLM-4.5-Air | |
|---|---|---|
| Overview | ||
| Company | OpenAI | Z.ai |
| Release date | Jun 26 2026 | Jul 28 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 106B |
| Benchmarks | ||
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 59.8% |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | 88.8% | — |
| Timeline | ||
| Release gap | GLM-4.5-Air shipped 333 days before GPT-5.6 Sol | |
Which is better: GPT-5.6 Sol or GLM-4.5-Air?
GPT-5.6 Sol and GLM-4.5-Air don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4.5-Air shipped 333 days before GPT-5.6 Sol, so benchmark comparisons should account for the intervening progress.
GPT-5.6 Sol is proprietary, while GLM-4.5-Air is open weight.
Direct benchmark comparisons are unavailable — GPT-5.6 Sol and GLM-4.5-Air don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5.6 Sol was released by OpenAI on Jun 26 2026.
GLM-4.5-Air was released by Z.ai on Jul 28 2025.
GPT-5.6 Sol is a proprietary model released by OpenAI. GLM-4.5-Air is an open weight model released by Z.ai.
Other comparisons
GPT-5.6 Sol vs Claude Fable 5GLM-4.5-Air vs Claude Fable 5GPT-5.6 Sol vs Gemini OmniGLM-4.5-Air vs Gemini OmniGPT-5.6 Sol vs Muse SparkGLM-4.5-Air vs Muse SparkGPT-5.6 Sol vs Grok 4.3 BetaGLM-4.5-Air vs Grok 4.3 BetaGPT-5.6 Sol vs DeepSeek-V4-ProGLM-4.5-Air vs DeepSeek-V4-ProGPT-5.6 Sol vs Mistral Medium 3.5GLM-4.5-Air vs Mistral Medium 3.5