DeepSeek-V4-Flash vs GLM-4
DeepSeek DeepSeek-V4-Flash | Z.ai GLM-4 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | Z.ai |
| Release date | Apr 24 2026 | Jan 16 2024 |
| Access | Open Weight | 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. | 18% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 88.1% | — |
| Timeline | ||
| Release gap | GLM-4 shipped 829 days before DeepSeek-V4-Flash | |
Which is better: DeepSeek-V4-Flash or GLM-4?
DeepSeek-V4-Flash 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 829 days before DeepSeek-V4-Flash, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Flash is open weight, while GLM-4 is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-V4-Flash and GLM-4 don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek-V4-Flash was released by DeepSeek on Apr 24 2026.
GLM-4 was released by Z.ai on Jan 16 2024.
DeepSeek-V4-Flash is an open weight model released by DeepSeek. GLM-4 is a proprietary model released by Z.ai.
Other comparisons
DeepSeek-V4-Flash vs Claude Fable 5GLM-4 vs Claude Fable 5DeepSeek-V4-Flash vs GPT-5.6 SolGLM-4 vs GPT-5.6 SolDeepSeek-V4-Flash vs Gemini OmniGLM-4 vs Gemini OmniDeepSeek-V4-Flash vs Muse SparkGLM-4 vs Muse SparkDeepSeek-V4-Flash vs Grok 4.3 BetaGLM-4 vs Grok 4.3 BetaDeepSeek-V4-Flash vs Mistral Medium 3.5GLM-4 vs Mistral Medium 3.5