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 DeepSeek-V3.1DeepSeek |  Gemini 3.5 Flash |  o3OpenAI | Gemini 2.5 Flash | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | ||
| Family | DeepSeek | Gemini | o-series | Gemini |
| Release date | 2025-08-21 | 2026-05-20 | 2025-04-16 | 2025-06-17 |
| Context window | 128,000 tokens | — | 200,000 tokens | 1,000,000 tokens |
| Parameters | 671B | — | — | — |
| Modality | text | text, vision, audio | text, vision | text, vision, audio |
| License | MIT | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | 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. | Reasoning-focused model in the o-series. | Google's cost-and-latency-optimized Gemini 2.5 variant. Generally available June 2025 — designed for high-throughput agentic workflows with sub-second first-token latency. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | — | — | 87.7% | — |
| AIME-25 | — | — | 88.9% | — |
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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-FlashmaxGemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27BmaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1✓GPT-5 PromaxGPT-5max
Grok 4maxGemini 2.5 Flash✓Qwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.