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 GPT-5 ProOpenAI | GPT-5 OpenAI | GPT-4.1 OpenAI |  Claude 4.5 HaikuAnthropic | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | OpenAI | Anthropic |
| Family | GPT | GPT | GPT | Claude |
| Release date | 2025-08-07 | 2025-08-07 | 2025-04-14 | 2025-10-01 |
| Context window | 400,000 tokens | 400,000 tokens | 1,000,000 tokens | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision, audio | text, vision, audio | 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. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — | Fast, cost-effective Claude model. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 85.1% | — | — |
| GPQA-D | — | 87.3% | — | — |
| HumanEval | — | 95.2% | — | — |
| Aider | — | 85.4% | — | — |
| AIME-25 | — | 91.0% | — | — |
| LiveCB | — | 74.5% | — | — |
| MMMU | — | 74.1% | — | — |
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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 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 Haiku✓DeepSeek-V3.1maxGPT-5 Pro✓GPT-5✓
Grok 4maxGemini 2.5 FlashmaxQwen3 235Bmaxo3maxGPT-4.1✓
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.