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 Pro (Gemini 3 Pro Image Preview)
google/gemini-3-pro-image-preview
Google: Nano Banana Pro (Gemini 3 Pro Image Preview) is a 65,536-token model served on Composite at $1.25 per million tokens in and $7.50 per million tokens out.
Try in PlaygroundSpecifications
| Model ID | google/gemini-3-pro-image-preview |
|---|---|
| Provider | Google AI Studio |
| Context window | 65,536 tokens |
| Accepts | image, text |
| Returns | image, text |
| Input price | $1.25 per million tokens |
| Output price | $7.50 per million tokens |
| Prompt caching | Supported — cached input is billed at the provider's cache rate, on credits and plans alike |
| Image input | $0.0000012 per image |
| Audio input | $0.0000012 per second |
| Image output | $0.000075 per image |
| Reasoning tokens | $7.50 per million tokens |
| Web search | $0.0175 per result |
| Thinking | Always on for this model |
| Moderated | No |
| Cost on a monthly plan | About 14 plan credits per typical call (8k in, 1k out) |
| Routing endpoints | 2 (base plus 1 routing variant) |
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-3-pro-image-preview:cheapThink |
Google AI Studio | $1.25 per million tokens input · $7.50 per million tokens output |
Pricing
$1.25 per million tokens input · $7.50 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 14 plan credits, at the provider's own price.
Provider
Google AI Studio
Roleplay fit
Gemini models combine large context windows with fast throughput, which keeps response times low even in busy group chats.
Context behavior
Its 65,536-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 sits in the mid-range on price, a reasonable pick for regular roleplay use without going for the cheapest option available.
From the provider
Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and...
Supplied by Google AI Studio, not written by Composite.
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