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 Mistral Large 2Mistral |  Gemini 3 Pro |  o3OpenAI | GPT-5.5 OpenAI | |
|---|---|---|---|---|
| Vendor | Mistral | OpenAI | OpenAI | |
| Family | Mistral | Gemini | o-series | GPT |
| Release date | 2024-07-24 | 2026-04-22 | 2025-04-16 | 2026-04-23 |
| Context window | 128,000 tokens | 2,000,000 tokens | 200,000 tokens | 400,000 tokens |
| Parameters | 123B | — | — | — |
| Modality | text | text, vision, audio, video | text, vision | text, vision, audio |
| License | Mistral Research License | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | — | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. | Reasoning-focused model in the o-series. | 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. |
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