GPT-5.3 Codex vs Nano Banana (Gemini 2.5 Flash Image 🍌)
| OpenAI GPT-5.3 Codex | Google Nano Banana (Gemini 2.5 Flash Image 🍌) | |
|---|---|---|
| Vendor | OpenAI | |
| Context window | 400,000 | 32,768 |
| Max output | 128,000 | 32,768 |
| Reasoning | Yes | Yes |
| Tool calling | Yes | No |
| File input | Yes | Yes |
| Input | text, image, file | text, image |
| Output | text | image |
| Released | 2026-02-05 | 2025-08-26 |