What is the difference between Nano Banana 2 and Nano Banana Pro?

Nano Banana 2 (Gemini 3.1 Flash Image) is the Flash-tier version -- it generates images faster and at half the cost of Nano Banana Pro ($0.067 vs $0.134 per 1K image). Nano Banana Pro delivers higher visual fidelity for the most demanding use cases, but for most applications, Nano Banana 2's quality

Can Nano Banana 2 edit existing images?

Yes. You can upload an existing image and use conversational editing to modify it. The Thought Signature mechanism preserves the visual context between edits, so you can make incremental changes without regenerating the entire image. This works for style changes, object addition/removal, text modifi

Is Nano Banana 2 available for free?

Nano Banana 2 is available through Google AI Studio for testing and prototyping. Production use requires a paid API key. At $0.067 per 1K image, it is affordable for most use cases. There is no subscription -- you pay per image generated.

How does character consistency work?

Nano Banana 2 maintains character appearance across up to 5 characters in a single workflow through Thought Signatures. You describe your characters in the first generation, and subsequent prompts in the same session will maintain their appearance (hair color, clothing, facial features, etc.) consis

Can it generate images with accurate text?

Yes -- this is one of Nano Banana 2's standout features. It generates legible, accurate text including brand names, headlines, body copy, and even numbers. It can also translate and localize text within images. Previous generation models (DALL-E 2, Midjourney v5) struggled with text rendering; Nano

What aspect ratios are supported?

Nano Banana 2 supports multiple aspect ratios from square (1:1) to wide (16:9) and portrait (9:16), at resolutions from 512px up to 4K. You specify the desired aspect ratio and resolution in your prompt or API parameters.

How does it compare to running Stable Diffusion locally?

Nano Banana 2 and Stable Diffusion serve different needs. Stable Diffusion is free and runs locally with full privacy, but requires a powerful GPU, manual setup, and lacks native character consistency and text rendering. Nano Banana 2 requires an API key and sends data to Google's servers, but offer

Google Nano Banana 2: Sub-Second 4K Image Gen That Changes Everything (2026)

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