Grok 4.20 Beta vs GLM-4
xAI Grok 4.20 Beta | Z.ai GLM-4 | |
|---|---|---|
| Overview | ||
| Company | xAI | Z.ai |
| Release date | Feb 17 2026 | Jan 16 2024 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 56% | — |
| Timeline | ||
| Release gap | GLM-4 shipped 763 days before Grok 4.20 Beta | |
Which is better: Grok 4.20 Beta or GLM-4?
Grok 4.20 Beta and GLM-4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4 shipped 763 days before Grok 4.20 Beta, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Grok 4.20 Beta and GLM-4 don't publish scores on any of the same benchmarks.
Frequently asked questions
Grok 4.20 Beta was released by xAI on Feb 17 2026.
GLM-4 was released by Z.ai on Jan 16 2024.
Other comparisons
Grok 4.20 Beta vs Claude Fable 5GLM-4 vs Claude Fable 5Grok 4.20 Beta vs GPT-5.6 SolGLM-4 vs GPT-5.6 SolGrok 4.20 Beta vs Gemini OmniGLM-4 vs Gemini OmniGrok 4.20 Beta vs Muse SparkGLM-4 vs Muse SparkGrok 4.20 Beta vs DeepSeek-V4-ProGLM-4 vs DeepSeek-V4-ProGrok 4.20 Beta vs Mistral Medium 3.5GLM-4 vs Mistral Medium 3.5