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 Gemini 2.5 Pro |  GPT-5.6 SolOpenAI |  DeepSeek-V3.1DeepSeek | |
|---|---|---|---|
| Vendor | OpenAI | DeepSeek | |
| Family | Gemini | GPT | DeepSeek |
| Release date | 2025-03-25 | 2026-06-26 | 2025-08-21 |
| Context window | 2,000,000 tokens | — | 128,000 tokens |
| Parameters | — | — | 671B |
| Modality | text, vision, audio, video | text, vision, audio | text |
| License | proprietary | proprietary | MIT |
| Source | proprietary | proprietary | open weights |
| Description | Predecessor to Gemini 3 Pro. | 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. | Large MoE open-weight model. Predecessor to DeepSeek-V4. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | 84.1% | — | — |
| GPQA-D | 84.0% | — | — |
| MMMU | 72.4% | — | — |
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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+