Nano

nano

Describe an image below.
Your generations land here — swipe to browse.

Settings

Gemini API key

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Model

Nano Banana 2 gemini-3.1-flash-image · balanced · up to 4K Nano Banana 2 Lite gemini-3.1-flash-lite-image · fastest · 1K only Nano Banana Pro gemini-3-pro-image · highest quality · up to 4K

Resolution

Aspect ratio

Parallel images · 2

Generation options Thinking high thinking level for harder prompts Search grounding ground the image in Google Search Image search Nano Banana 2 only Random seed different seed for each parallel image Prompt expansion rewrites your prompt with Gemini 3.5 Flash-Lite

Advanced · Safety filters

Threshold for the four configurable harm categories (harassment, hate speech, sexually explicit, dangerous content), per model. "Off" is least restrictive — if a model rejects it, the app falls back to "Block none" automatically. Google's separate image safety layer is not configurable.

Nano Banana 2

Nano Banana 2 Lite

Nano Banana Pro

Prompt expansion

Generated images include a SynthID watermark.
Requests go directly from this browser to the Gemini API.