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 o3OpenAI |  Claude 4.8 OpusAnthropic | GPT-5.6 Sol OpenAI |  DeepSeek-R1DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | OpenAI | DeepSeek |
| Family | o-series | Claude | GPT | DeepSeek |
| Release date | 2025-04-16 | 2026-05-28 | 2026-06-26 | 2025-01-20 |
| Context window | 200,000 tokens | 1,000,000 tokens | — | 128,000 tokens |
| Parameters | — | — | — | 671B |
| Modality | text, vision | text, vision | text, vision, audio | text |
| License | proprietary | proprietary | proprietary | MIT |
| Source | proprietary | proprietary | proprietary | open weights |
| Description | Reasoning-focused model in the o-series. | 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. | Flagship of OpenAI's GPT-5.6 three-model suite (Sol / Terra / Luna), released as a limited preview. Strong gains in coding, cybersecurity, biology, and long-horizon agentic work. Pricing: $5 / $30 per million input/output tokens. | Reasoning-focused open-weight model. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | 87.7% | — | — | — |
| AIME-25 | 88.9% | — | — | 79.8% |
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GPT-5.6 Sol✓Claude 4.8 Opus✓
Qwen3.7-Maxmax
Gemini 3.5 FlashmaxGemini 3.5maxGemini OmnimaxGPT-5.5maxDeepSeek-V4-FlashmaxGemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27BmaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5 PromaxGPT-5max
Grok 4maxGemini 2.5 FlashmaxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1✓
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