DeepSeek-V4-Flash vs Mistral Small 4
DeepSeek DeepSeek-V4-Flash | Mistral Mistral Small 4 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | Mistral |
| Release date | Apr 24 2026 | Mar 16 2026 |
| 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% | — |
Competitive coding LiveCodeBenchCoding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | 91.6% | — |
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 | Mistral Small 4 shipped 39 days before DeepSeek-V4-Flash | |
Which is better: DeepSeek-V4-Flash or Mistral Small 4?
DeepSeek-V4-Flash and Mistral Small 4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 4 shipped 39 days before DeepSeek-V4-Flash, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Flash is open weight, while Mistral Small 4 is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-V4-Flash and Mistral Small 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.
Mistral Small 4 was released by Mistral on Mar 16 2026.
DeepSeek-V4-Flash is an open weight model released by DeepSeek. Mistral Small 4 is a proprietary model released by Mistral.
Other comparisons
DeepSeek-V4-Flash vs Claude Sonnet 5Mistral Small 4 vs Claude Sonnet 5DeepSeek-V4-Flash vs GPT-5.6 SolMistral Small 4 vs GPT-5.6 SolDeepSeek-V4-Flash vs Gemini OmniMistral Small 4 vs Gemini OmniDeepSeek-V4-Flash vs Muse Spark 1.1Mistral Small 4 vs Muse Spark 1.1DeepSeek-V4-Flash vs Grok 4.5Mistral Small 4 vs Grok 4.5DeepSeek-V4-Flash vs Kimi K2.7 CodeMistral Small 4 vs Kimi K2.7 Code