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 Claude 4.8 OpusAnthropic |  o3OpenAI |  DeepSeek-V3.1DeepSeek | DeepSeek-R1 DeepSeek | |
|---|---|---|---|---|
| Vendor | Anthropic | OpenAI | DeepSeek | DeepSeek |
| Family | Claude | o-series | DeepSeek | DeepSeek |
| Release date | 2026-05-28 | 2025-04-16 | 2025-08-21 | 2025-01-20 |
| Context window | 1,000,000 tokens | 200,000 tokens | 128,000 tokens | 128,000 tokens |
| Parameters | — | — | 671B | 671B |
| Modality | text, vision | text, vision | text | text |
| License | proprietary | proprietary | MIT | MIT |
| Source | proprietary | proprietary | open weights | open weights |
| Description | Anthropic's flagship hybrid-reasoning model — Opus 4.8 pushes coding and AI-agent workflows further (agentic coding 69.2% vs 64.3% on 4.7; multidisciplinary reasoning 57.9% vs 54.7%). 1M-token context, $5/$25 per MTok pricing held flat from Opus 4.7. Introduces Dynamic Workflows for Claude Code (research preview). GA on Anthropic API (`claude-opus-4-8`), AWS Bedrock, Google Vertex, Microsoft Foundry, and GitHub Copilot. | Reasoning-focused model in the o-series. | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Reasoning-focused open-weight model. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | — | 87.7% | — | — |
| AIME-25 | — | 88.9% | — | 79.8% |
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Claude 4.8 Opus✓
Qwen3.7-Maxmax
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Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1✓
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