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 o3OpenAI | GPT-5.6 Sol OpenAI |  Qwen3 235BAlibaba |  Mistral Large 2Mistral | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | Alibaba | Mistral |
| Family | o-series | GPT | Qwen | Mistral |
| Release date | 2025-04-16 | 2026-06-26 | 2025-04-29 | 2024-07-24 |
| Context window | 200,000 tokens | — | 128,000 tokens | 128,000 tokens |
| Parameters | — | — | 235B | 123B |
| Modality | text, vision | text, vision, audio | text | text |
| License | proprietary | proprietary | Apache-2.0 | Mistral Research License |
| Source | proprietary | proprietary | open weights | open weights |
| Description | Reasoning-focused model in the o-series. | Flagship of OpenAI's GPT-5.6 three-model suite (Sol / Terra / Luna), released as a limited preview. Strong gains in coding, cybersecurity, biology, and long-horizon agentic work. Pricing: $5 / $30 per million input/output tokens. | Predecessor to the Qwen3.6 family. | 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. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | 87.7% | — | — | — |
| HumanEval | — | — | — | 89.0% |
| AIME-25 | 88.9% | — | — | — |
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GPT-5.6 Sol✓
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