Detailed comparison of capabilities, features, and performance.
| Feature | GPT-5.1 codex max | Claude 4.7 Opus |
|---|---|---|
| AI Lab | OpenAI | Anthropic |
| Context Size | 400,000 tokens | 200,000 tokens |
| Max Output Size | 128,000 tokens | 128,000 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | Yes | Yes |
| Description | A version of GPT-5.1 optimized for coding tasks set in max mode. | The latest Opus 4.7 model from Anthropic — notable improvements in software engineering, instruction following, vision (high-res up to 2576px), and memory. Same $5/$25 per MTok pricing. |
View detailed specifications and capabilities
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View model details →Access both GPT-5.1 codex max and Claude 4.7 Opus in a single workspace without managing multiple API keys.
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