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Nano Banana (Gemini 2.5 Flash Image) pricing and routing profile

Nano Banana (Gemini 2.5 Flash Image) from Google lists at $0.30 per million input tokens and $2.50 per million output tokens, with a 32,768-token context window. Prices from OpenRouter's catalogue on 2026-09-28.

Input, per 1M tokens$0.30
Output, per 1M tokens$2.50
Cached input, per 1M$0.03
Context window33K
Confidence signalNot exposed

Structured output

Cost per 1,000 requests

Request shapeList cost
Classification or routing (600 tokens in, 10 out)$0.205
Chat reply (2,000 in, 400 out)$1.60
Retrieval-augmented answer (8,000 in, 500 out)$3.65

Before prompt caching. Try your own shape in the cost calculator.

Can Gimbix route to it first?

Not as a first-answer model through OpenRouter: no host returns token log probabilities for Nano Banana (Gemini 2.5 Flash Image). It can still be the model Gimbix falls back to when a cheaper model is unsure.

Cheaper models that can answer first

Models priced below Nano Banana (Gemini 2.5 Flash Image) that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.

ModelInput / output per 1MCheaper on a chat reply
Qwen3 235B A22B Thinking 2507$0.23 / $2.3014%
Qwen3 VL 30B A3B Thinking$0.20 / $2.4015%
Qwen3.5-122B-A10B$0.26 / $2.0816%
Qwen3 VL 8B Thinking$0.18 / $2.1025%
Qwen3 VL 235B A22B Instruct$0.21 / $1.9026%
Qwen3.5 Plus 2026-02-15$0.26 / $1.5629%

Questions

How much does Nano Banana (Gemini 2.5 Flash Image) cost?

Nano Banana (Gemini 2.5 Flash Image) lists at $0.30 per million input tokens and $2.50 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $1.60 per 1,000 requests.

What is the context window of Nano Banana (Gemini 2.5 Flash Image)?

32,768 tokens.

Can a cheaper model replace Nano Banana (Gemini 2.5 Flash Image)?

Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match Nano Banana (Gemini 2.5 Flash Image) on one half of your requests and make at most three answers worse on the other.