Mistral NeMo vs Grok 4.1 Fast
Mistral Mistral NeMo | SpaceXAI Grok 4.1 Fast | |
|---|---|---|
| Overview | ||
| Company | Mistral | SpaceXAI |
| Release date | Jul 18 2024 | Nov 19 2025 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Parameters | 12B | — |
Context window | 128k | — |
| 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. | — | 19% |
| Timeline | ||
| Release gap | Mistral NeMo shipped 489 days before Grok 4.1 Fast | |
Which is better: Mistral NeMo or Grok 4.1 Fast?
Mistral NeMo and Grok 4.1 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral NeMo shipped 489 days before Grok 4.1 Fast, so benchmark comparisons should account for the intervening progress.
Mistral NeMo is open weight, while Grok 4.1 Fast is proprietary.
Direct benchmark comparisons are unavailable — Mistral NeMo and Grok 4.1 Fast don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral NeMo was released by Mistral on Jul 18 2024.
Grok 4.1 Fast was released by SpaceXAI on Nov 19 2025.
Mistral NeMo is an open weight model released by Mistral. Grok 4.1 Fast is a proprietary model released by SpaceXAI.
Other comparisons
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