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 GPT-5.6 SolOpenAI | GPT-5 Pro OpenAI |  Qwen3 235BAlibaba |  DeepSeek-V4-FlashDeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | Alibaba | DeepSeek |
| Family | GPT | GPT | Qwen | DeepSeek |
| Release date | 2026-06-26 | 2025-08-07 | 2025-04-29 | 2026-04-22 |
| Context window | — | 400,000 tokens | 128,000 tokens | 1,000,000 tokens |
| Parameters | — | — | 235B | 284B (13B active) |
| Modality | text, vision, audio | text, vision, audio | text | text |
| License | proprietary | proprietary | Apache-2.0 | MIT |
| Source | proprietary | proprietary | open weights | open weights |
| Description | 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. | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. | Predecessor to the Qwen3.6 family. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
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GPT-5.6 Sol✓
Claude 4.8 OpusmaxQwen3.7-Maxmax
Gemini 3.5 FlashmaxGemini 3.5maxGemini OmnimaxGPT-5.5maxDeepSeek-V4-Flash✓Gemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27BmaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5 Pro✓GPT-5max
Grok 4maxGemini 2.5 FlashmaxQwen3 235B✓o3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.