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 DeepSeek-V3.1DeepSeek |  Claude 4.7 OpusAnthropic |  GPT-5.5OpenAI |  Grok 4xAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | Anthropic | OpenAI | xAI |
| Family | DeepSeek | Claude | GPT | Grok |
| Release date | 2025-08-21 | 2026-04-16 | 2026-04-23 | 2025-07-09 |
| Context window | 128,000 tokens | 1,000,000 tokens | 400,000 tokens | 256,000 tokens |
| Parameters | 671B | — | — | — |
| Modality | text | text, vision | text, vision, audio | text |
| License | MIT | proprietary | proprietary | proprietary |
| Source | open weights | proprietary | proprietary | proprietary |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle). Optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6. | 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. | — |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 88.2% | 87.6% | 82.8% |
| GPQA-D | — | 90.1% | 89.4% | 87.5% |
| HumanEval | — | 97.4% | 96.8% | — |
| Aider | — | 91.2% | 89.7% | 72.5% |
| AIME-25 | — | 93.5% | 94.2% | 86.1% |
| LiveCB | — | 80.2% | 78.9% | 65.3% |
| MMMU | — | 79.0% | 78.4% | — |
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Claude 4.8 Opusmax
Qwen3.7-Maxmax
Gemini 3.5maxGemini OmnimaxGPT-5.5✓Qwen3.6-27BmaxDeepSeek-V4-FlashmaxDeepSeek-V4-PromaxGemini 3 PromaxClaude 4.7 Opus✓Claude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1✓GPT-5maxGrok 4✓Gemini 2.5 FlashmaxQwen3 235Bmaxo3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.