Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image 🍌) vs Grok 4.20
| Google Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image 🍌) | xAI Grok 4.20 | |
|---|---|---|
| Vendor | xAI | |
| Context window | 65,536 | 2,000,000 |
| Max output | 32,768 | 2,000,000 |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| File input | Yes | Yes |
| Input | text, image | text, image |
| Output | image | text |
| Released | 2026-06-29 | 2026-03-08 |