Nano Banana 2 (Gemini 3.1 Flash Image) vs Kimi K3.1 Pro
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Nano Banana 2 (Gemini 3.1 Flash Image) is 3.6× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix. Kimi K3.1 Pro has the larger context window (1M vs 131K).
| Nano Banana 2 (Gemini 3.1 Flash Image) | Kimi K3.1 Pro | |
|---|---|---|
| Input price / 1M | $0.50 | $2.00 |
| Output price / 1M | $3.00 | $10.00 |
| Blended price (3:1) | $1.13 | $4.00 |
| Cached input / 1M | — | $0.20 |
| Context window | 131K | 1M |
| Max output | 33K | 944K |
| Intelligence index | — | 46.5 |
| Coding index | — | — |
| Providers | 2 | 23 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | No | Yes |
| Released | 2026-06-18 | 2026-10-23 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image) or Kimi K3.1 Pro?
Nano Banana 2 (Gemini 3.1 Flash Image) is 3.6× cheaper than Kimi K3.1 Pro on a typical 3:1 input/output mix.
Nano Banana 2 (Gemini 3.1 Flash Image) vs Kimi K3.1 Pro: which has a bigger context window?
Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. Kimi K3.1 Pro: 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, Kimi K3.1 Pro ≈ $9,000.
More comparisons
Nano Banana 2 (Gemini 3.1 Flash Image) vs Gemini 4 CarbonNano Banana 2 (Gemini 3.1 Flash Image) vs Claude Fable 5.2Nano Banana 2 (Gemini 3.1 Flash Image) vs Gemini Omni 1.2 FlashNano Banana 2 (Gemini 3.1 Flash Image) vs Gemini Omni 1.1 FlashNano Banana 2 (Gemini 3.1 Flash Image) vs Hy4Nano Banana 2 (Gemini 3.1 Flash Image) vs GLM 5.3 FlashX LegalNano Banana 2 (Gemini 3.1 Flash Image) vs GPT-6.1 TerraNano Banana 2 (Gemini 3.1 Flash Image) vs GPT-6.1 Terra ProNano Banana 2 (Gemini 3.1 Flash Image) vs MiniMax M3.1 FlashNano Banana 2 (Gemini 3.1 Flash Image) vs DeepSeek V4.1 Flash 1017Nano Banana 2 (Gemini 3.1 Flash Image) vs Nemotron 3.5 Super VLNano Banana 2 (Gemini 3.1 Flash Image) vs Gemini 4 ArgonNano Banana 2 (Gemini 3.1 Flash Image) vs Claude Haiku 5.5Nano Banana 2 (Gemini 3.1 Flash Image) vs Nano Banana 2.1Nano Banana 2 (Gemini 3.1 Flash Image) vs Mistral Large 4Nano Banana 2 (Gemini 3.1 Flash Image) vs GPT-6.1 Sol ProKimi K3.1 Pro vs Gemini 4 CarbonKimi K3.1 Pro vs Claude Fable 5.2Kimi K3.1 Pro vs Gemini Omni 1.2 FlashKimi K3.1 Pro vs Gemini Omni 1.1 FlashKimi K3.1 Pro vs Hy4Kimi K3.1 Pro vs GLM 5.3 FlashX LegalKimi K3.1 Pro vs GPT-6.1 TerraKimi K3.1 Pro vs GPT-6.1 Terra Pro