Grok 4 Heavy vs GLM-4.5-Air
SpaceXAI Grok 4 Heavy | Z.ai GLM-4.5-Air | |
|---|---|---|
| Overview | ||
| Company | SpaceXAI | Z.ai |
| Release date | Jul 9 2025 | 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% |
| Timeline | ||
| Release gap | Grok 4 Heavy shipped 19 days before GLM-4.5-Air | |
Which is better: Grok 4 Heavy or GLM-4.5-Air?
Grok 4 Heavy and GLM-4.5-Air don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 4 Heavy shipped 19 days before GLM-4.5-Air, so benchmark comparisons should account for the intervening progress.
Grok 4 Heavy is proprietary, while GLM-4.5-Air is open weight.
Direct benchmark comparisons are unavailable — Grok 4 Heavy and GLM-4.5-Air don't publish scores on any of the same benchmarks.
Frequently asked questions
Grok 4 Heavy was released by SpaceXAI on Jul 9 2025.
GLM-4.5-Air was released by Z.ai on Jul 28 2025.
Grok 4 Heavy is a proprietary model released by SpaceXAI. GLM-4.5-Air is an open weight model released by Z.ai.
Other comparisons
Grok 4 Heavy vs Claude Sonnet 5GLM-4.5-Air vs Claude Sonnet 5Grok 4 Heavy vs GPT-5.6 SolGLM-4.5-Air vs GPT-5.6 SolGrok 4 Heavy vs Gemini OmniGLM-4.5-Air vs Gemini OmniGrok 4 Heavy vs Muse Spark 1.1GLM-4.5-Air vs Muse Spark 1.1Grok 4 Heavy vs DeepSeek-V4-ProGLM-4.5-Air vs DeepSeek-V4-ProGrok 4 Heavy vs Mistral Medium 3.5GLM-4.5-Air vs Mistral Medium 3.5