Gemini 3.1 Pro Preview vs Nano Banana Pro
Gemini 3.1 Pro Preview is the cheaper option on input; Gemini 3.1 Pro Preview is cheaper on output. Figures below are per million tokens, from vendor pricing cited in our reporting.
| Gemini 3.1 Pro Preview | Nano Banana Pro | |
|---|---|---|
| Input per 1M tokens | $2 | $2 |
| Output per 1M tokens | $12 | $12 |
| Cached input per 1M | $0.20 | $0.20 |
| Context window | 1.048576M tokens | 66K tokens |
| Parameters | — | — |
| Licence | ||
| Benchmark | — | — |
| Vendor | ||
| Released | — | — |
What the numbers say
- Input price gap: 0% ($2 vs $2).
- Blended three-to-one input/output rate: $18.00 for Gemini 3.1 Pro Preview, $18.00 for Nano Banana Pro.
- Context: 1.048576M tokens against 66K tokens.
- Licence: Gemini 3.1 Pro Preview is ; Nano Banana Pro is .
Sources
Gemini 3.1 Pro Preview specs · Nano Banana Pro specs · Full price index