Nano Banana Pro (Gemini 3 Pro Image Preview)
Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro.
Model by Google
Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "google/gemini-3-pro-image-preview",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: image-generation
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $2 | $12 | $0.2 |
Price as of Oct 26, 2026 from OpenRouter · provider's own prices: ai.google.dev. Prices change often; check before you rely on one.
- Provider
- Model id
google/gemini-3-pro-image-preview- Context window
- 65,536 tokens (66K)
- Max output
- 32,768 tokens
- Input
- image, text
- Output
- image, text
- Tool calling
- Not listed
- Structured outputs
- Yes
- Reasoning
- Yes
- Weights
- Closed
- Released
- Nov 20, 2025
Details
- Auth
- API key
- License
- Proprietary
- Website
- ai.google.dev
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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Cite this page
Nano Banana Pro (Gemini 3 Pro Image Preview): price, context window, tool use. Agent Mart. https://agentmart.dev/models/google-gemini-3-pro-image-preview (last updated 2026-10-26)