Released 3 days after Veo 3.1 · Announcement · All Google releases
Gemini 3 Pro Image Preview, also known as Nano Banana Pro, combines Google's advanced reasoning with professional-grade image generation and editing. It is built for complex, multi-turn image creation that needs accurate text rendering, real-world grounding through Google Search, and high-fidelity detail, making it a fit for graphic design, product mockups, and data visualizations. With a 66K context window and up to 33K output tokens, the model is built to understand intricate visual briefs and refine images iteratively through conversational guidance. It offers studio-quality precision and detailed editing control, including consistent multi-image blending and identity preservation across multiple subjects. It best fits professional workflows where image generation demands reasoning-driven accuracy alongside creative sophistication.
Call Gemini 3 Pro Image on Opper through POST /v3/images. Sign up without a credit card. Get started
Gemini 3 Pro Image runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| Multi | No | $2.00 | $12.00 | Input price |
Live routes and prices as JSON: api.opper.ai/v3/models?q=vertexai%2Fgemini-3-pro-image
Gemini 3 Pro Image runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting Gemini 3 Pro Image has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention with abuse monitoring: nothing is logged or used for training; content flagged by abuse monitoring is held for review. No training on customer data. GLOBAL; SCCs; DPA available.
Call Gemini 3 Pro Image through the Opper gateway with one API key. Gemini 3 Pro Image draws on Opper's images endpoint, POST /v3/images, and also answers in chat on the OpenAI-compatible endpoint.
See the Opper images guide and the Opper multimodal skill.
Gemini 3 Pro Image is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
curl -s https://api.opper.ai/v3/images \-H "Authorization: Bearer $OPPER_API_KEY" \-H "Content-Type: application/json" \-d '{"model": "vertexai/gemini-3-pro-image","prompt": "A watercolor lighthouse on a cliff at sunrise","aspect_ratio": "1:1","quality": "medium"}' \| jq -r '.data[0].b64_json' | base64 --decode > image.png# To edit an image, add "image": "https://..." (or a file_<id>) to the body
Pick your tool, then choose Gemini 3 Pro Image to see how to run it through Opper.
The tools Gemini 3 Pro Image can use through Opper. Pick one to see how to set it up.
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