Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) (google/gemini-3.1-flash-image-preview) costs $0.5 per 1M prompt tokens and $3 per 1M completion tokens, has a 65,536-token context window, and supports structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $0.5 / 1M tokens
- Completion price
- $3 / 1M tokens
- Context
- 65,536 tokens
- Input modalities
- image, text
- Output modalities
- image, text
- Tokenizer
- Gemini
- Instruct type
- —
- Knowledge cutoff
- —
- Hugging Face
- —
Last price change: 2026-03-04
Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines...