grok-3 vs GPT Image 2.5 Dev
| xAI grok-3 | OpenAI GPT Image 2.5 Dev | |
|---|---|---|
| Vendor | xAI | OpenAI |
| Context window | 131,072 | — |
| Max output | 8,192 | — |
| Reasoning | No | No |
| Tool calling | Yes | No |
| File input | Yes | Yes |
| Input | text | text, image |
| Output | text | image |
| Released | 2025-02-17 | 2026-09-08 |