Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | — | 123B |
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 200k | 128k |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $2.00Mistral |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | — | $6.00Mistral |
| — | $700Mistral | |
| These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given 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. | 34% | — |
SWE-Bench VerifiedCoding — Real 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. | 72.5% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 79.6% | — |
| Overview | ||
| Company | Anthropic | Mistral |
| Release date | May 22 2025 | Jul 24 2024 |
| Access | Closed | Open Weight |
| Model details | View model | View model |
Other comparisons
Claude Opus 4vsGPT-6.1 SolMistral Large 2vsGPT-6.1 SolClaude Opus 4vsGemini 4 ArgonMistral Large 2vsGemini 4 ArgonClaude Opus 4vsMuse Spark OpenMistral Large 2vsMuse Spark OpenClaude Opus 4vsGrok 4.7Mistral Large 2vsGrok 4.7Claude Opus 4vsDeepSeek-V4.1-Flash-1017Mistral Large 2vsDeepSeek-V4.1-Flash-1017Claude Opus 4vsKimi K3Mistral Large 2vsKimi K3Frequently asked questions
Claude Opus 4 and Mistral Large 2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Large 2 shipped 302 days before Claude Opus 4, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (Claude Opus 4) vs 128k (Mistral Large 2). Claude Opus 4 is closed, while Mistral Large 2 is open weight.
Direct benchmark comparisons are unavailable — Claude Opus 4 and Mistral Large 2 don't publish scores on any of the same benchmarks.