"What aspect ratios can I get when I use Nano Banana?" This is a question we receive occasionally when people want to create images in a different size other than square. Most professionals are drowning in a stack of tools that don't talk to each other, and Google’s habit of renaming models (from Gemini 3.1 Flash to Nano Banana 2) only adds to the confusion. The Nano Banana Aspect Ratio Blueprint: - Verify Your Model: Click the "three dots" on your generated image in Gemini to confirm you are using Nano Banana 2. - Check the Approved List: Stick to the 14 verified ratios to avoid prompt failure. - The Re-Prompt Technique: If Gemini ignores your aspect ratio request, don't start a new chat. Use a follow-up prompt to remind it of the specific ratio from the supported list. A few thoughts: - The documentation is kind of dense. Google frequently changes the UI and removes features without warning. - Specifically, the model names in the API docs (like Gemini 3.1 Flash Image Preview) don't match the friendly Nano Banana names we see in the app. - If you aren't using the exact terms found in the technical tables, Gemini might give you nonsense back or simply refuse the request. ✨ Join the cohort at the next NotebookLM Masterclass → https://maven.com/thoughts-brewing-llc/learn-notebooklm-in-a-weekend-2-cohort 🌟 Request a video: https://thoughtsbrewing.com/en-us/youtube-video-request-page?utm_source=youtube #Gemini3 #NanoBanana #AIImageGeneration #AIQuickTips #ThoughtsBrewing ➡️ Next-Level AI Workshops: https://thoughtsbrewing.com/en-us/next-level-ai-workshops?utm_source=youtube ➡️ SUBSCRIBE: https://www.youtube.com/@thoughtsbrewingllc ➡️ Read the blog: https://thoughtsbrewing.com/en-us/blog-subscription?utm_source=youtube 📝 Google's Documentation: https://ai.google.dev/gemini-api/docs/image-generation#3.1-flash-image-preview Timestamps 0:00 - What is the Nano Banana 2 image model? 1:00 - How do I know what model Gemini used to create my image? 1:34 - Where is the official Nano Banana documentation? 2:36 - What are the supported aspect ratios for Nano Banana 2? 4:55 - How do you fix an ignored aspect ratio prompt? Keywords Nano Banana aspect ratios, Gemini 3.1 Flash Image Preview, Google Gemini image model, AI image dimensions, Nano Banana 2 vs Pro, Gemini image generation troubleshooting, workflow automation for creators, Google AI documentation, technical prompting tips, Thoughts Brewing AI tips, Thoughts Brewing, Damien Griffin, AI Quick Tips, Nano Banana 2, Google Gemini, Google AI, Google Nano Banana 2, Google AI Image Generation, Nano Banana, AI image aspect ratios, Nano Banana 2 image sizes