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 DeepSeek-V3.1DeepSeek |  Claude 4.6 SonnetAnthropic |  Qwen3.6-27BAlibaba |  o3OpenAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | Anthropic | Alibaba | OpenAI |
| Family | DeepSeek | Claude | Qwen | o-series |
| Release date | 2025-08-21 | 2026-02-17 | 2026-04-22 | 2025-04-16 |
| Context window | 128,000 tokens | 1,000,000 tokens | 262,144 tokens | 200,000 tokens |
| Parameters | 671B | — | 27B (dense) | — |
| Modality | text | text, vision | text, vision, video | text, vision |
| License | MIT | proprietary | Apache-2.0 | proprietary |
| Source | open weights | proprietary | open weights | proprietary |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Anthropic's mid-tier flagship — released 12 days after Opus 4.6 and matching most of its capabilities at ~40% the API cost ($3/$15 per 1M tokens). 1M-token context. | Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input. | Reasoning-focused model in the o-series. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 85.4% | 78.9% | — |
| GPQA-D | — | 85.8% | — | 87.7% |
| HumanEval | — | 95.9% | 91.5% | — |
| Aider | — | 83.6% | 70.2% | — |
| AIME-25 | — | 87.4% | — | 88.9% |
| LiveCB | — | 73.8% | — | — |
| MMMU | — | — | 70.3% | — |
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Claude 4.8 OpusmaxQwen3.7-Maxmax
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Mistral Large 2maxMax 4 models. Remove one to add another.