Nano Banana 2 (Gemini 3.1 Flash Image) vs Gemini 3.7 Flash
Price, context window & benchmark comparison
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Verdict: Nano Banana 2 (Gemini 3.1 Flash Image) is 25% cheaper than Gemini 3.7 Flash on a typical 3:1 input/output mix. Gemini 3.7 Flash has the larger context window (1M vs 131K).
| Nano Banana 2 (Gemini 3.1 Flash Image) | Gemini 3.7 Flash | |
|---|---|---|
| Input price / 1M | $0.50 | $0.75 |
| Output price / 1M | $3.00 | $3.75 |
| Blended price (3:1) | $1.13 | $1.50 |
| Cached input / 1M | — | $0.075 |
| Context window | 131K | 1M |
| Max output | 33K | 66K |
| Intelligence index | — | 39.1 |
| Coding index | — | 76.1 |
| Providers | 2 | 6 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Released | 2026-06-18 | 2026-08-13 |
| Retirement | — | — |
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FAQ
Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image) or Gemini 3.7 Flash?
Nano Banana 2 (Gemini 3.1 Flash Image) is 25% cheaper than Gemini 3.7 Flash on a typical 3:1 input/output mix.
Nano Banana 2 (Gemini 3.1 Flash Image) vs Gemini 3.7 Flash: which has a bigger context window?
Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. Gemini 3.7 Flash: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Nano Banana 2 (Gemini 3.1 Flash Image) ≈ $2,500, Gemini 3.7 Flash ≈ $3,375.
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