Measured on Composite
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.
AI model
Google: Nano Banana 2 (Gemini 3.1 Flash Image)
google/gemini-3.1-flash-image
Google: Nano Banana 2 (Gemini 3.1 Flash Image) is a 131,072-token model served on Composite at $0.625 per million tokens in and $3.75 per million tokens out.
Try in PlaygroundSpecifications
| Model ID | google/gemini-3.1-flash-image |
|---|---|
| Provider | cv11 |
| Context window | 131,072 tokens |
| Accepts | image, text |
| Returns | image, text |
| Input price | $0.625 per million tokens |
| Output price | $3.75 per million tokens |
| Prompt caching | Not offered for this model |
| Image output | $0.000075 per image |
| Web search | $0.0175 per result |
| Thinking | Optional - see "Google: Nano Banana 2 (Gemini 3.1 Flash Image) (Reasoning)" in the catalog to turn it on by default |
| Moderated | No |
| Cost on a monthly plan | About 7.0 plan credits per typical call (8k in, 1k out) |
| Routing endpoints | 8 (base plus 7 routing variants) |
Routing variants
The same model behind 7 alternative endpoints. Call the id directly to pin a route; the base id above picks for you.
| Route | Model ID | Provider | Price |
|---|---|---|---|
| Normal | google/gemini-3.1-flash-image-normal |
cv11 | $0.625 per million tokens input · $3.75 per million tokens output |
| Normal + cheapThink | google/gemini-3.1-flash-image-normal:cheapThink |
cv11 | $0.625 per million tokens input · $3.75 per million tokens output |
| Cheapest provider | google/gemini-3.1-flash-image:cheapest-provider |
Google AI Studio | $0.625 per million tokens input · $3.75 per million tokens output |
| Cheapest provider + cheapThink | google/gemini-3.1-flash-image:cheapest-provider:cheapThink |
Google AI Studio | $0.625 per million tokens input · $3.75 per million tokens output |
| cheapThink | google/gemini-3.1-flash-image:cheapThink |
cv11 | $0.625 per million tokens input · $3.75 per million tokens output |
| Fast | google/gemini-3.1-flash-image:fast |
$0.625 per million tokens input · $3.75 per million tokens output | |
| Fast + cheapThink | google/gemini-3.1-flash-image:fast:cheapThink |
$0.625 per million tokens input · $3.75 per million tokens output |
Pricing
$0.625 per million tokens input · $3.75 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 7.0 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
With a 131,072-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It sits in the mid-range on price, a reasonable pick for regular roleplay use without going for the cheapest option available.
From the provider
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...
Supplied by cv11, not written by Composite.
Related models
Composite Gemini Router · Google: Gemini 3.8 Flash (Drafted) · Google: Gemini 3.7 Flash (Drafted)