Gemini 3.8 Flash vs Nano Banana 2.1
Price, context window & benchmark comparison
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Verdict: Gemini 3.8 Flash is 45% cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix. Gemini 3.8 Flash has the larger context window (1M vs 66K).
| Gemini 3.8 Flash | Nano Banana 2.1 | |
|---|---|---|
| Input price / 1M | $0.82 | $1.50 |
| Output price / 1M | $4.13 | $7.50 |
| Blended price (3:1) | $1.65 | $3.00 |
| Cached input / 1M | $0.0825 | — |
| Context window | 1M | 66K |
| Max output | 66K | 59K |
| Intelligence index | 30.8 | — |
| Coding index | 76.3 | — |
| Providers | 7 | 1 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-02 | 2026-10-06 |
| Retirement | — | — |
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FAQ
Which is cheaper, Gemini 3.8 Flash or Nano Banana 2.1?
Gemini 3.8 Flash is 45% cheaper than Nano Banana 2.1 on a typical 3:1 input/output mix.
Gemini 3.8 Flash vs Nano Banana 2.1: which has a bigger context window?
Gemini 3.8 Flash: 1,048,576 tokens. Nano Banana 2.1: 65,536 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.8 Flash ≈ $3,713, Nano Banana 2.1 ≈ $6,750.
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