Codestral 25.01 vs Grok 4.20 Beta
Mistral Codestral 25.01 | SpaceXAI Grok 4.20 Beta | |
|---|---|---|
| Overview | ||
| Company | Mistral | SpaceXAI |
| Release date | Jan 13 2025 | Feb 17 2026 |
| Access | Proprietary | Proprietary |
| Specifications | ||
Context window | 256k | — |
| 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% |
Abstract reasoning ARC-AGI-2Puzzle-style tests of abstract reasoning and pattern-finding — the kind of thing people find easy but AIs often struggle with. Higher is better. | — | 53.3% |
Community preference Arena Elo (Text)Real people chat with two anonymous AIs side by side and vote for the answer they prefer. Votes become a chess-style Elo rating on arena.ai — it measures which AI people actually like, not test scores. Higher is better. | — | 1475 |
| Timeline | ||
| Release gap | Codestral 25.01 shipped 400 days before Grok 4.20 Beta | |
Which is better: Codestral 25.01 or Grok 4.20 Beta?
Codestral 25.01 and Grok 4.20 Beta don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral 25.01 shipped 400 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 — Codestral 25.01 and Grok 4.20 Beta don't publish scores on any of the same benchmarks.
Frequently asked questions
Codestral 25.01 was released by Mistral on Jan 13 2025.
Grok 4.20 Beta was released by SpaceXAI on Feb 17 2026.
Other comparisons
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