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 GPT-5.5OpenAI |  Qwen3 235BAlibaba |  DeepSeek-V3.1DeepSeek | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | DeepSeek | DeepSeek |
| Family | GPT | Qwen | DeepSeek | DeepSeek |
| Release date | 2026-04-23 | 2025-04-29 | 2025-08-21 | 2026-04-22 |
| Context window | 400,000 tokens | 128,000 tokens | 128,000 tokens | 1,000,000 tokens |
| Parameters | — | 235B | 671B | 284B (13B active) |
| Modality | text, vision, audio | text | text | text |
| License | proprietary | Apache-2.0 | MIT | MIT |
| Source | proprietary | open weights | open weights | open weights |
| Description | 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. | Predecessor to the Qwen3.6 family. | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
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Gemini 2.5 Flashmax
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Mistral Large 2maxMax 4 models. Remove one to add another.