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 DeepSeek-R1DeepSeek |  Mistral Large 2Mistral |  GPT-5.6 SolOpenAI | |
|---|---|---|---|
| Vendor | DeepSeek | Mistral | OpenAI |
| Family | DeepSeek | Mistral | GPT |
| Release date | 2025-01-20 | 2024-07-24 | 2026-06-26 |
| Context window | 128,000 tokens | 128,000 tokens | — |
| Parameters | 671B | 123B | — |
| Modality | text | text | text, vision, audio |
| License | MIT | Mistral Research License | proprietary |
| Source | open weights | open weights | proprietary |
| Description | Reasoning-focused open-weight model. | 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. | 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. |
| Links | |||
| Benchmarks | |||
| HumanEval | — | 89.0% | — |
| AIME-25 | 79.8% | — | — |
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GPT-5.6 Sol✓
Claude 4.8 Opus+
Qwen3.7-Max+
Gemini 3.5 Flash+Gemini 3.5+Gemini Omni+GPT-5.5+DeepSeek-V4-Flash+Gemini 3 Pro+DeepSeek-V4-Pro+Qwen3.6-27B+Claude 4.7 Opus+Claude 4.6 Sonnet+Claude 4.5 Haiku+DeepSeek-V3.1+GPT-5 Pro+GPT-5+
Grok 4+Gemini 2.5 Flash+Qwen3 235B+o3+GPT-4.1+
Llama 4 Scout+Llama 4 Maverick+Gemini 2.5 Pro+DeepSeek-R1✓Mistral Large 2✓