Nano Banana 2 (Gemini 3.1 Flash Image Preview)
GOOGLE Developer Architecture Profile
Intelligence (ELO)1300Chatbot Arena Verified
Max Context65,536Tokens
API Cost / 1M$3.50Blended Prompt + Completion
Model Capabilities
- Fictional
- Drafting
- Classification
- Conversational
- Image Gen
- Coding & Logic
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 advanced contextual understanding with fast, cost-efficient inference, making complex image generation and iterative edits significantly more accessible. Aspect ratios can be controlled with the [image_config API Parameter](https://openrouter.ai/docs/features/multimodal/image-generation#image-aspect-ratio-configuration)
Granular Pricing Matrix
Input Tokens (Prompt)$0.50 / 1M
Output Tokens (Completion)$3.00 / 1M
Pricing data via OpenRouter. Sync: 3/16/2026
Evaluate Competitors
VS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs Google: Gemini 3.1 Pro Preview Custom ToolsVS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs OpenAI: GPT-5.2-CodexVS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs Google: Gemini 3 Flash PreviewVS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs OpenAI: GPT-5.2 ProVS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs OpenAI: GPT-5.2VS Engine MatchupNano Banana 2 (Gemini 3.1 Flash Image Preview) vs OpenAI: GPT-5.1-Codex-Max