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 DeepSeek-R1DeepSeek | DeepSeek-V4-Flash DeepSeek |  Gemini 3.5 Flash |  GPT-5 ProOpenAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | DeepSeek | OpenAI | |
| Family | DeepSeek | DeepSeek | Gemini | GPT |
| Release date | 2025-01-20 | 2026-04-22 | 2026-05-20 | 2025-08-07 |
| Context window | 128,000 tokens | 1,000,000 tokens | — | 400,000 tokens |
| Parameters | 671B | 284B (13B active) | — | — |
| Modality | text | text | text, vision, audio | text, vision, audio |
| License | MIT | MIT | proprietary | proprietary |
| Source | open weights | open weights | proprietary | proprietary |
| Description | Reasoning-focused open-weight model. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Fast, low-cost tier of the Gemini 3.5 family announced at Google I/O 2026. June 2026 update added native computer-use capability, moving Flash from generation to agentic task execution. | 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. |
| Links | ||||
| Benchmarks | ||||
| AIME-25 | 79.8% | — | — | — |
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GPT-5.6 Solmax
Claude 4.8 Opusmax
Qwen3.7-MaxmaxGemini 3.5 Flash✓Gemini 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 235Bmaxo3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1✓
Mistral Large 2maxMax 4 models. Remove one to add another.