Google: Nano Banana (Gemini 2.5 Flash Image) is a 32,768-token model served on Composite at $0.375 per million tokens in and $3.13 per million tokens out.
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Specifications
Specifications and pricing as served by Composite
Model ID
google/gemini-2.5-flash-image
Provider
cv11
Context window
32,768 tokens
Accepts
image, text
Returns
image, text
Input price
$0.375 per million tokens
Output price
$3.13 per million tokens
Prompt caching
Supported — cached input is billed at the provider's cache rate, on credits and plans alike
Image input
$3.8e-7 per image
Audio input
$0.0000012 per second
Image output
$0.000038 per image
Reasoning tokens
$3.13 per million tokens
Web search
$0.0175 per result
Moderated
No
Cost on a monthly plan
About 4.9 plan credits per typical call (8k in, 1k out)
Routing endpoints
2 (base plus 1 routing variant)
Use Google: Nano Banana (Gemini 2.5 Flash Image) in JanitorAI or SillyTavern
Make a Composite API key and type google/gemini-2.5-flash-image as the model name. JanitorAI takes the full URL https://composite.lucidity.sh/v1/chat/completions; SillyTavern, ChubAI, Agnai and RisuAI take https://composite.lucidity.sh/v1. It runs on credits, a plan, or your own provider key.
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
Routing variants
The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.
Route
Model ID
Provider
Price
cheapThink
google/gemini-2.5-flash-image:cheapThink
cv11
$0.375 per million tokens input · $3.13 per million tokens output
Pricing
$0.375 per million tokens input · $3.13 per million tokens output
Credits pay the provider’s price plus 25%; cache hits cost less.
On a monthly plan, a typical call (8k tokens in, 1k out) uses about 4.9 plan credits, at the provider's own price.
Provider
cv11
Roleplay fit
Gemini models combine large context windows with fast throughput, which keeps response times low even in busy group chats.
Context behavior
Its 32,768-token context window covers most single-session roleplay threads comfortably. For campaigns that run over many sessions, expect older messages to eventually drop out of context.
Cost for regular use
It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.
From the provider
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,...