GPT Image 1.0 vs Claude Opus 5.5
| OpenAI GPT Image 1.0 | Anthropic Claude Claude Opus 5.5 | |
|---|---|---|
| Vendor | OpenAI | Anthropic Claude |
| Context window | 128,000 | 1,000,000 |
| Max output | — | 128,000 |
| Reasoning | No | Yes |
| Tool calling | No | Yes |
| File input | Yes | Yes |
| Input | text, image | text, image, file |
| Output | image | text |
| Released | 2025-04-23 | 2026-09-22 |