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 Mistral Large 2Mistral |  GPT-5.5OpenAI | GPT-5 OpenAI | GPT-4.1 OpenAI | |
|---|---|---|---|---|
| Vendor | Mistral | OpenAI | OpenAI | OpenAI |
| Family | Mistral | GPT | GPT | GPT |
| Release date | 2024-07-24 | 2026-04-23 | 2025-08-07 | 2025-04-14 |
| Context window | 128,000 tokens | 400,000 tokens | 400,000 tokens | 1,000,000 tokens |
| Parameters | 123B | — | — | — |
| Modality | text | text, vision, audio | text, vision, audio | text, vision |
| License | Mistral Research License | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | — | OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — |
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