Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) vs GPT-6 Luna
Price, context window & benchmark comparison
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Verdict: GPT-6 Luna is 2.8× cheaper than Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) on a typical 3:1 input/output mix. GPT-6 Luna has the larger context window (1.1M vs 66K).
| Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) | GPT-6 Luna | |
|---|---|---|
| Input price / 1M | $0.25 | $0.10 |
| Output price / 1M | $1.50 | $0.50 |
| Blended price (3:1) | $0.56 | $0.20 |
| Cached input / 1M | — | $0.01 |
| Context window | 66K | 1.1M |
| Max output | 59K | 128K |
| Intelligence index | — | 37.3 |
| Coding index | — | — |
| Providers | 2 | 7 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Released | 2026-06-30 | 2026-09-22 |
| Retirement | — | — |
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FAQ
Which is cheaper, Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) or GPT-6 Luna?
GPT-6 Luna is 2.8× cheaper than Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) on a typical 3:1 input/output mix.
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) vs GPT-6 Luna: which has a bigger context window?
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image): 65,536 tokens. GPT-6 Luna: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) ≈ $1,250, GPT-6 Luna ≈ $450.00.
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