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 Claude 4.7 OpusAnthropic |  o3OpenAI | GPT-5.5 OpenAI |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | Anthropic | OpenAI | OpenAI | |
| Family | Claude | o-series | GPT | Gemini |
| Release date | 2026-04-16 | 2025-04-16 | 2026-04-23 | 2025-03-25 |
| Context window | 1,000,000 tokens | 200,000 tokens | 400,000 tokens | 2,000,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision | text, vision | text, vision, audio | text, vision, audio, video |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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. | Reasoning-focused model in the o-series. | 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. | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 88.2% | — | 87.6% | 84.1% |
| GPQA-D | 90.1% | 87.7% | 89.4% | 84.0% |
| HumanEval | 97.4% | — | 96.8% | — |
| Aider | 91.2% | — | 89.7% | — |
| AIME-25 | 93.5% | 88.9% | 94.2% | — |
| LiveCB | 80.2% | — | 78.9% | — |
| MMMU | 79.0% | — | 78.4% | 72.4% |
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Claude 4.8 Opusmax
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Mistral Large 2maxMax 4 models. Remove one to add another.