Nano Banana (Gemini 2.5 Flash Image): Try it on LMArena

“Nano-Banana” is the codename that was used on LMArena during testing for what is now known as: Gemini 2.5 Flash Image. Try it for yourself directly on LMArena.ai

Nano Banana (Gemini 2.5 Flash Image): Try it on LMArena
"nano-banana" codename for Gemini 2.5 Flash Image on LMArena

What is Nano Banana?

If you’ve heard chatter online about “nano-banana,” here’s the scoop: it was the codename used here on LMArena for Google’s newest image model during pre-release testing. It has since been publicly released and is officially called: Gemini 2.5 Flash Image.

You can try it today on LMArena under its official name: Gemini-2.5-Flash-Image Preview (nano-banana).

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This model was highlighted by our community for its ability to follow complex instructions, preserve character identity, and maintain contextual details—earning the nickname “Photoshop killer” across the internet. This model can:

  • Generate new images from text prompts
  • Transform existing photos with natural language edits
  • Blend multiple images into one coherent composition

New Milestones with Nano Banana

Pre-release testing showed how Gemini 2.5 Flash Image (nano-banana) might be received in the real world upon public release. In testing, the model broke new milestones with the community:

  • “nano-banana” drove over 5 million community votes in the Arena
  • Record-breaking 2.5M+ votes casted for this model alone
  • Largest Elo score lead in Arena history (171 points)

As the data started to converge and stabilize, it was clear that Gemini 2.5 Flash Image (nano-banana) was to rank #1 on the Image Edit leaderboard.

We were able to see that the model was also going to rank #1 in Text-to-Image Leaderboard.

Why Test It on LMArena?

On LMArena, you don’t just see a demo—you shape the future of AI through real-world testing. By voting and comparing, your feedback directly influences how a final model is released and which models rise to the top of the leaderboards. You can learn more about how LMArena works, here in this blog post.

You can try Gemini 2.5 Flash Image (nano-banana) in three ways:

  • Battle → Anonymously vs. another model and vote on which result is better
  • Side-by-Side → Compare two outputs on the same prompt
  • Direct Chat → Work with it one-on-one to refine your edits

🍌 Try out nano-banana for yourself and keep testing all the best frontier AIs in Battle mode to help discover and improve the next great model.