Grok‑1.5 vs GLM-4.5-Air
xAI Grok‑1.5 | Z.ai GLM-4.5-Air | |
|---|---|---|
| Overview | ||
| Company | xAI | Z.ai |
| Release date | Mar 29 2024 | 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‑1.5 shipped 486 days before GLM-4.5-Air | |
Which is better: Grok‑1.5 or GLM-4.5-Air?
Grok‑1.5 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‑1.5 shipped 486 days before GLM-4.5-Air, so benchmark comparisons should account for the intervening progress.
Grok‑1.5 is proprietary, while GLM-4.5-Air is open weight.
Direct benchmark comparisons are unavailable — Grok‑1.5 and GLM-4.5-Air don't publish scores on any of the same benchmarks.
Frequently asked questions
Grok‑1.5 was released by xAI on Mar 29 2024.
GLM-4.5-Air was released by Z.ai on Jul 28 2025.
Grok‑1.5 is a proprietary model released by xAI. GLM-4.5-Air is an open weight model released by Z.ai.
Other comparisons
Grok‑1.5 vs Claude Fable 5GLM-4.5-Air vs Claude Fable 5Grok‑1.5 vs GPT-5.6 SolGLM-4.5-Air vs GPT-5.6 SolGrok‑1.5 vs Gemini OmniGLM-4.5-Air vs Gemini OmniGrok‑1.5 vs Muse SparkGLM-4.5-Air vs Muse SparkGrok‑1.5 vs DeepSeek-V4-ProGLM-4.5-Air vs DeepSeek-V4-ProGrok‑1.5 vs Mistral Medium 3.5GLM-4.5-Air vs Mistral Medium 3.5