Claude Opus 4.5 vs Ministral 8B
Anthropic Claude Opus 4.5 | Mistral Ministral 8B | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Mistral |
| Release date | Nov 24 2025 | Oct 2024 |
| Access | Proprietary | Open Weight |
| 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. | 90% | — |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 80.9% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 87% | — |
| Timeline | ||
| Release gap | Ministral 8B shipped 419 days before Claude Opus 4.5 | |
Which is better: Claude Opus 4.5 or Ministral 8B?
Claude Opus 4.5 and Ministral 8B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Ministral 8B shipped 419 days before Claude Opus 4.5, so benchmark comparisons should account for the intervening progress.
Claude Opus 4.5 is proprietary, while Ministral 8B is open weight.
Direct benchmark comparisons are unavailable — Claude Opus 4.5 and Ministral 8B don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude Opus 4.5 was released by Anthropic on Nov 24 2025.
Ministral 8B was released by Mistral on Oct 2024.
Claude Opus 4.5 is a proprietary model released by Anthropic. Ministral 8B is an open weight model released by Mistral.
Other comparisons
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