Side-by-side comparison of pricing, context window, benchmarks, capabilities, and license. Data sourced from the Interestana AI Index, kept current as developers update their models.
Model A — Mistral AI
Mistral Large 3 is Mistral AI’s flagship enterprise model, offered with strong European data sovereignty guarantees and competitive performance on multilingual tasks.
Model B — OpenAI
o3 is OpenAI’s flagship reasoning model, scaling deliberate test-time compute to solve novel mathematics and science problems that earlier LLMs could not.
| Property | Mistral Large 3 | OpenAI o3 |
|---|---|---|
| Released | Feb 12, 2026 | Jan 31, 2026 |
| Developer | Mistral AI | OpenAI |
| Type | multimodal | reasoning |
| License | proprietary | proprietary |
| Context window | 256,000 | 200,000 |
| Parameters | — | undisclosed |
| Input $/M tokens | $2.00 | $15.00 |
| Output $/M tokens | $6.00 | $60.00 |
Bold green values indicate the winner on that dimension where comparison is meaningful (lower price wins; bigger context wins; more open license wins; newer date wins).
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