GPT-5.3 Codex vs dall-e-3
| OpenAI GPT-5.3 Codex | OpenAI dall-e-3 | |
|---|---|---|
| Vendor | OpenAI | OpenAI |
| Context window | 400,000 | 4,000 |
| Max output | 128,000 | — |
| Reasoning | Yes | No |
| Tool calling | Yes | No |
| File input | Yes | No |
| Input | text, image, file | text |
| Output | text | image |
| Released | 2026-02-05 | 2023-10-03 |