Google

Nano Banana 2

gemini-3.1-flash-image

An image model for prompt-driven generation, editing, and visual design workflows.

Image model for prompt-driven generation, editing, and visual design workflows

131K context131K context
Released2026-05-28
Relays31 sites
image generationvision

Model information

Model ID
gemini-3.1-flash-image
Context
131.1K
Max input
-
Max output
32.8K
Knowledge cutoff
2025-01
Open weights
Not supported
License
-
Release date
2026-05-28

Input

Text: SupportedImage: SupportedAudio: Not supportedVideo: SupportedPDF: SupportedFile: Supported

Output

Text: SupportedImage: SupportedAudio: Not supportedVideo: Not supported

API capabilities

Reasoning: SupportedTool call: Not supportedStructured output: UnknownTemperature: Supported

Google Official Pricing

CNY
Updated: 2026-10-04T22:55:11.511+08:00

Input

~¥3.343/ 1M tokens

Output

~¥401.166/ 1M tokens

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should Nano Banana 2 relay pricing be compared?

This Nano Banana 2 pricing page compares official pricing with public prices from 31 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 11/08/2026, 08:15.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.