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 Claude 4.8 OpusAnthropic |  DeepSeek-R1DeepSeek | Claude 4.6 Sonnet Anthropic | |
|---|---|---|---|
| Vendor | Anthropic | DeepSeek | Anthropic |
| Family | Claude | DeepSeek | Claude |
| Release date | 2026-05-28 | 2025-01-20 | 2026-02-17 |
| Context window | 1,000,000 tokens | 128,000 tokens | 1,000,000 tokens |
| Parameters | — | 671B | — |
| Modality | text, vision | text | text, vision |
| License | proprietary | MIT | proprietary |
| Source | proprietary | open weights | proprietary |
| 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 open-weight model. | 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. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | — | — | 85.4% |
| GPQA-D | — | — | 85.8% |
| HumanEval | — | — | 95.9% |
| Aider | — | — | 83.6% |
| AIME-25 | — | 79.8% | 87.4% |
| LiveCB | — | — | 73.8% |
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Claude 4.8 Opus✓
Qwen3.7-Max+
Gemini 3.5+Gemini Omni+
GPT-5.5+Qwen3.6-27B+DeepSeek-V4-Flash+DeepSeek-V4-Pro+Gemini 3 Pro+Claude 4.7 Opus+Claude 4.6 Sonnet✓Claude 4.5 Haiku+DeepSeek-V3.1+GPT-5+
Grok 4+Gemini 2.5 Flash+Qwen3 235B+o3+GPT-4.1+
Llama 4 Scout+Llama 4 Maverick+Gemini 2.5 Pro+DeepSeek-R1✓
Mistral Large 2+