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 Mistral Large 2Mistral |  Grok 4xAI |  Gemini 2.5 Flash |  GPT-5.5OpenAI | |
|---|---|---|---|---|
| Vendor | Mistral | xAI | OpenAI | |
| Family | Mistral | Grok | Gemini | GPT |
| Release date | 2024-07-24 | 2025-07-09 | 2025-06-17 | 2026-04-23 |
| Context window | 128,000 tokens | 256,000 tokens | 1,000,000 tokens | 400,000 tokens |
| Parameters | 123B | — | — | — |
| Modality | text | text | text, vision, audio | text, vision, audio |
| License | Mistral Research License | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | Large text-only Mistral model with a 128K context window and 123B parameters, tuned for strong instruction following and long-context reasoning. Mistral's flagship open-weights release in the Large 2 line. | — | Google's cost-and-latency-optimized Gemini 2.5 variant. Generally available June 2025 — designed for high-throughput agentic workflows with sub-second first-token latency. | 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. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 82.8% | — | 87.6% |
| GPQA-D | — | 87.5% | — | 89.4% |
| HumanEval | 89.0% | — | — | 96.8% |
| Aider | — | 72.5% | — | 89.7% |
| AIME-25 | — | 86.1% | — | 94.2% |
| LiveCB | — | 65.3% | — | 78.9% |
| MMMU | — | — | — | 78.4% |
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