Gemini 3.1 Flash Image Preview (Nano Banana 2) API
About
Build advanced reasoning agents with Gemini 3.1 Flash Image Preview (Nano Banana 2), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.50/1M input and $3.00/1M output tokens. Access Gemini 3.1 Flash Image Preview (Nano Banana 2) via the Vercel AI Gateway API with up to 33K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
textimage
Limits
Context Window
131K
Tokens
Input Limit
131K
Tokens
Max Output
33K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$3.00
Caching (per 1M tokens)
Read
$0.05
Frequently Asked Questions
Gemini 3.1 Flash Image Preview (Nano Banana 2) by Vercel AI Gateway costs $0.50 per 1M input tokens and $3.00 per 1M output tokens. Cached reads cost $0.05 per 1M tokens.
Model Details
ID
google/gemini-3.1-flash-image-preview
Provider
Vercel AI GatewayFamily
gemini
Release Date
Feb 26, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration