Nano Banana 2 - AI Model Guide

Nano Banana 2 is an AI image generation and editing model created by Google, built on the Gemini 3.1 Flash Image architecture. It is available on the CRAISEE platform via Replicate and is designed for fast, high-volume creative workflows that require both speed and Pro-level visual quality.

Nano Banana 2 uniquely combines conversational editing, multi-image fusion with up to 14 reference images, character consistency, accurate in-image text rendering, and optional Google Search grounding — all in a single model. This breadth of capabilities in a Flash-speed model sets it apart from most alternatives.

Conversational editing lets you refine an image through sequential follow-up prompts, similar to a dialogue. Instead of starting over, you describe changes — like 'make the background sunset' or 'add a logo to the shirt' — and the model iteratively updates the image while preserving the original composition and context.

Nano Banana 2 supports multi-image fusion with up to 14 reference images simultaneously. This allows creators to blend multiple visual sources for complex style transfers, character consistency across scenes, or composite image compositions that draw from several distinct visual references in a single generation.

Nano Banana 2 supports 14 flexible aspect ratios, including ultra-wide formats such as 21:9, 8:1, and 1:8, as well as standard social media dimensions. This makes it suitable for a wide range of output formats, from cinematic banners and social posts to portrait and square compositions.

Nano Banana 2 is built on the Gemini 3.1 Flash Image architecture, prioritizing Flash-level speed while delivering Pro-level visual quality. It has recorded over 21 million runs on Replicate, making it one of the most battle-tested and performance-validated fast image generation models currently available.

Yes. Nano Banana 2 features accurate in-image text rendering, producing crisp and readable text within generated visuals, including multilingual support. This is a significant improvement over previous Flash-generation models, making it well-suited for product mockups, signage, posters, and branded content creation.

Google Search grounding is an optional feature in Nano Banana 2 that anchors image generation to real-time web information or Google Image Search results. This ensures contextually accurate outputs — for example, generating a recognizable landmark, a current product design, or a real-world scene with factual visual accuracy.