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Google: Nano Banana (Gemini 2.5 Flash Image)

Source description (English)

Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation,...

Overview

Model specifications

Context
32,768 tokens
Maximum output
8,192 tokens
Architecture
text+image->text+image
Tokenizer
Gemini
Knowledge cutoff
2025-01-31
Moderated
No
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$0.3
per 1M tokens
Output
$2.5
per 1M tokens
Cache read
$0.03
per 1M tokens
Cache write
$0.0833
per 1M tokens
Image input
$0.3
per 1M tokens
Image output
$30
per 1M tokens
Audio input
$1
per 1M tokens
Input Audio Cache
$0.1
per 1M tokens
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/images \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-2.5-flash-image","prompt":"A sunlit mountain landscape"}'
Capabilities

InputOutput

Input
imagetext
Output
imagetext
API

Supported API parameters

max_tokensresponse_formatseedstopstructured_outputstemperaturetop_p
Available providers

4 providers

Checked: September 18, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Google AI Studio

Not provided
Context
33K
Maximum output
29K

Google AI Studio

Not provided
Context
33K
Maximum output
29K

Google

Not provided
Context
33K
Maximum output
8K

Google AI Studio

Not provided
Context
33K
Maximum output
29K
google

4 models

All models