Nano Banana

Nano Banana is the nickname that stuck to Google's image generation and editing model inside the Gemini app — officially Gemini 2.5 Flash Image, launched in late August 2025. Upload a photo, type a plain-language instruction like “put this person on a beach,” and it edits the image while keeping the person's appearance consistent across scenes, or blends several images into one.

Key facts: the model works conversationally, so you can refine an image step by step (“add snow,” “make it vintage”) while it remembers earlier context. Images render in roughly 10 seconds and carry an invisible SynthID watermark marking them as AI-generated. The upgraded Nano Banana Pro (Gemini 3 Pro Image, November 20, 2025) adds up to 4K resolution and readable text in images, and newer Nano Banana 2/2.1 versions arrived in October 2026 with lower API prices.

Plans: free to use in the Gemini app with a daily quota that may throttle during high demand; a Google AI plan adds higher quotas, 2K downloads and Nano Banana Pro. For developers, the API costs around $0.039 per image on the original model.

Best for: creators, marketers and small businesses who need fast, on-brand visuals without stock photos or a designer. Watch out: free access throttles at peak times, small text can still render imperfectly, and the original model tops out at 1024×1024 — high-resolution work needs Pro.

Pros

• Edit photos with plain-language chat instructions, no editing skill needed.
• Keeps a person's appearance consistent across scenes.
• Blends several images into one in seconds.
• Lives inside the Gemini app, so it is easy to reach.

Watch out for

• It is an image model, not a professional editor; precise retouching still needs dedicated software.
• Consistency is strong but not perfect, so check faces and details closely.
• Edited images should be labelled honestly where authenticity matters.

Best for

Social creators and everyday users who want fast, fun photo edits by chat. Who should skip it: professional retouchers needing pixel-level control should use a full photo editor.

Pricing

Nano Banana is available inside the Gemini app, which offers a free tier; check the official pricing page for current plans and limits.

FAQs

What is Nano Banana? The nickname for Google's image generation and editing model inside Gemini, officially Gemini 2.5 Flash Image.

Can it keep a person looking the same? Yes, it edits while keeping the person's appearance consistent across scenes.

Can it combine images? Yes, it can blend several images into one.