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 GPT-5.5OpenAI |  DeepSeek-V3.1DeepSeek |  Llama 4 ScoutMeta | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | Meta | DeepSeek |
| Family | GPT | DeepSeek | Llama | DeepSeek |
| Release date | 2026-04-23 | 2025-08-21 | 2025-04-05 | 2026-04-22 |
| Context window | 400,000 tokens | 128,000 tokens | 10,000,000 tokens | 1,000,000 tokens |
| Parameters | — | 671B | 109B | 284B (13B active) |
| Modality | text, vision, audio | text | text, vision | text |
| License | proprietary | MIT | Llama 4 Community License | 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. | 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
Claude 4.6 SonnetmaxGPT-5.5✓DeepSeek-V4-Flash✓
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Grok 4maxQwen3 235Bmaxo3maxGPT-4.1maxLlama 4 Scout✓Llama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.