Bonsai Studio by PrismML

Bonsai Studio by PrismML

Generate images locally

1 ratings
4 reviews
Free

Details

  • Released
  • Updated
  • May 26, 2026
  • May 28, 2026

Features

Bonsai Studio by PrismML screenshot #1 for iPhone
Bonsai Studio by PrismML screenshot #2 for iPhone
Bonsai Studio by PrismML screenshot #3 for iPhone
Bonsai Studio by PrismML screenshot #4 for iPhone
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About

Create high-quality images directly on your iPhone without an internet connection. This app uses advanced AI models that run locally, ensuring your prompts and creations remain private on your device. Experience fast, on-device image generation for everyday creative workflows.

On-device image generation
Offline functionality
Multiple resolutions and aspect ratios
Save images to Photo Library
Built-in prompt moderation
Open weights license
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What's New in Bonsai Studio by PrismML

0.4.0

May 28, 2026

Smarter default resolution on older iPhones, system theme by default, "Reuse" -> "Remix", fixes for switching back from another app, various stability improvements

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User reviews

Import and auto convert and add bonsai llm 1bit

Hey this app is nice but please add an import auto convert other models so like if I want to add zimage it will automatically convert the model to 1bit and please add bonsai llm prompt enhancer feature we could add are own custom system prompt and make it where it save memory by unloading the llm out of ram for people that have 3 to 6 gb ram. This feature would be cool😎
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Taugt nichts

Hört nicht richtig zu, und hat heftige Zensur-Filter. Nicht zu gebrauchen

Really awesome technology

People might compare some of the image generations, two frontier model models, which really isn’t fair, what is amazing is completely local image generation on an iPhone that is actually pretty good and pretty much as fast as frontier models if you consider the fact that they have to go to somebody else’s server get rate limited get checked if the corporation is even going to allow you to generate that image. I’m getting most images generated within 10 seconds, can’t wait to see where this technology leads for local AI.
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Impressive

It’s crazy to be moderated when it’s running on my own device😂

FAQ

What devices does Bonsai Studio support?

Bonsai Studio is designed for iPhone. For the best experience, an iPhone 15 Pro or newer with 8 GB or more unified memory is recommended.

Does Bonsai Studio require an internet connection?

No, Bonsai Studio generates images locally on your device, meaning no internet connection is required. Your prompts and generated images stay private on your device.

How fast can Bonsai Studio generate images?

On an iPhone 15 Pro, Bonsai Studio can generate a 512x512 image in approximately 12 seconds, making local creative workflows fast enough for daily use.

What is the age rating for Bonsai Studio?

Bonsai Studio has an age rating of 12+.

Does Bonsai Studio have ads?

No, Bonsai Studio is ad-free.

Can I save my generated images?

Yes, Bonsai Studio allows you to save generated images directly to your iPhone's Photo Library.

What is the license for the AI model used?

Bonsai Studio uses the PrismML's ternary Bonsai Image model, and its weights are open under the Apache 2.0 license.

How often is Bonsai Studio updated?

The latest version, 0.4.0, was released on May 28, 2026, indicating recent development activity.