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 GPT-5 ProOpenAI |  Claude 4.7 OpusAnthropic | Claude 4.5 Haiku Anthropic | o3 OpenAI | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | Anthropic | OpenAI |
| Family | GPT | Claude | Claude | o-series |
| Release date | 2025-08-07 | 2026-04-16 | 2025-10-01 | 2025-04-16 |
| Context window | 400,000 tokens | 1,000,000 tokens | 200,000 tokens | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision, audio | text, vision | text, vision | text, vision |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. | Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle).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. | Fast, cost-effective Claude model. | Reasoning-focused model in the o-series. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 88.2% | — | — |
| GPQA-D | — | 90.1% | — | 87.7% |
| HumanEval | — | 97.4% | — | — |
| Aider | — | 91.2% | — | — |
| AIME-25 | — | 93.5% | — | 88.9% |
| LiveCB | — | 80.2% | — | — |
| MMMU | — | 79.0% | — | — |
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GPT-5.6 SolmaxClaude 4.8 Opusmax
Qwen3.7-Maxmax
Gemini 3.5 FlashmaxGemini 3.5maxGemini OmnimaxGPT-5.5max
DeepSeek-V4-FlashmaxGemini 3 PromaxDeepSeek-V4-PromaxQwen3.6-27BmaxClaude 4.7 Opus✓Claude 4.6 SonnetmaxClaude 4.5 Haiku✓DeepSeek-V3.1maxGPT-5 Pro✓GPT-5max
Grok 4maxGemini 2.5 FlashmaxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.