Nano Banana (Gemini Image) vs Stable Diffusion

Nano Banana (Gemini Image)

Google's Gemini image generation and editing models. Nano Banana 2 (Gemini 3.1 Flash Image) is the fast default, and Nano Banana Pro (Gemini 3 Pro Image) is the highest-fidelity option; both render legible in-image text and output up to 4K.

Stable Diffusion

The leading open-source image generation model, enabling anyone to run powerful AI image generation locally or on their own servers. A massive community has built thousands of fine-tuned models, LoRAs, and extensions (via Automatic1111 and ComfyUI).

Nano Banana (Gemini Image)

• Best-in-class legible, multilingual in-image text
• Strong multi-turn editing and consistency (up to 5 characters and 14 objects)
• Grounding in Google Search for real-world subjects
• Available in Gemini, Search, Flow, Google Ads, AI Studio, the Gemini API, and Vertex AI

• No free API tier for the image models
• Free app users fall back to an older model after a limited free quota
• Nano Banana Pro costs about twice as much per image as Nano Banana 2
• Still images only; video requires Veo or another model

Stable Diffusion

• Completely free and open-source
• Highly customizable with thousands of community models
• Can be run locally without sending data to a server
• Massive ecosystem of tools and extensions

• Requires technical knowledge to set up and run
• Requires a capable GPU for local inference

Nano Banana (Gemini Image)

• Marketing graphics, infographics, and title cards with accurate text
• Editing photos with plain-language instructions
• Product mockups that keep the same subject across many shots
• Localized creatives with translated in-image text
• Making stills to animate later in an image-to-video model

Stable Diffusion

• Running image generation locally for privacy
• Fine-tuning on custom datasets and styles
• Building custom image generation pipelines
• Experimenting with cutting-edge generative techniques