Anything can generate an image from a prompt; what makes this usable is that the second request keeps the first one's context, so "same scene, different light" actually stays the same scene. The tier table is worth reading before you commit — `flash` is the only one that takes video, `pro` is the one that renders text you can read, and `nano` exists for volume.
An image generation and editing server over Google's Gemini image models. Each result comes back with an `interaction_id`, so the next instruction — heavier fog, add a deer — continues the same conversation rather than starting a new image from scratch.
- `generate_image` — a prompt, an output path, and control over `ratio`, `size` up to 4K, and grounding
- `edit_image` — chain from `previous_interaction_id`, or pass `reference_images` from disk, up to 14 inputs
- `generate_story` — one prompt becomes a numbered sequence of captioned images: storyboards, comics, recipes
- `generate_icon_set` — one prompt per icon, chained so the whole set shares a look
- `generate_from_video` — a poster or thumbnail from a public YouTube URL
- `use_search` grounds an image in current data through Google Search; `use_image_search` adds visual context
- Three tiers with different capabilities — `nano` at 1K and PNG only, `flash` for the widest ratios and video input, `pro` for the highest quality and legible text inside the image
- Inline previews returned to the client by default, so the model can see what it produced and correct itself
Node.js 18+ and a Gemini API key from Google AI Studio, set as `GEMINI_API_KEY`. Clone, `npm install`, then register `index.js` with your client. One thing to check first: the Interactions API is in beta and the Gemini 3 tiers may need access on your key — set `model: "nano"` if `flash` or `pro` come back unavailable. Model IDs can be repointed per tier with `NANO_BANANA_MODEL_FLASH` and its siblings when Google rotates them. Version 2.1.0, MIT licensed.
Build from source — clone the repository and build it, then point your client at the binary