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StudioLM

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StudioLM is a free AI image generator, with a $0.01 image API

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StudioLM is a free AI image generator and editor that runs in the browser. The studio is called Imagen. It does not ask for a credit card, and generations in the browser are not metered. The same first-party models are available from code at $0.01 per image.

The product site is studiolm.dev. Imagen is the browser app. The API base URL is https://api.studiolm.dev. Docs are at docs.studiolm.dev.

What you do in the browser

Imagen is built for still images, not as a catalog of every model on the internet.

You describe a picture with tags, not a paragraph. A prompt is a comma-separated list of what belongs in the frame: subject, place, look. The site's own example is fox, mage, glowing runes, mossy forest.

You pick a look (anime, photoreal, anthro, or illustration) and a frame (square, portrait, or landscape). If part of the picture is wrong, you paint a mask and tag what should be there. Only that area is redrawn. The editor has layers, a brush, and zoom.

Finished images go into a library, sorted into boards. The community feed lets someone reuse another person's prompt and model in one tap.

A few other things the site states plainly:

  • A reference photo can steer a generation. Precise Reference is free for the first 10 photos each day.
  • A still can become a short clip, on desktop.
  • Style presets are one tap.
  • There is a phone layout and a desktop layout. It is not the desktop site squeezed onto a phone.
  • A Learn tab has short video guides inside the app.
  • Sign-up is email or Google. No card is required.

The API

Developers use a prepaid REST API. An image costs $0.01. Chat has a free daily token allowance. Credits are added in the dashboard with a card (Stripe) or crypto.

Routes follow the OpenAI layout:

  • POST /v1/images/generations generates an image
  • GET /v1/models lists models
  • POST /v1/chat/completions is chat
  • POST /v1/completions is text completions

There is a Python SDK: pip install studiolm. An API key is created from the dashboard after you log in at studiolm.dev. Image calls need prepaid credits. Imagen stays free.

A minimal image call, from the docs:

curl https://api.studiolm.dev/v1/images/generations \
  -H "Authorization: Bearer sk-..." \
  -H "Content-Type: application/json" \
  -d '{"prompt":"a red fox in a forest","aspect_ratio":"square"}'
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The quickstart also shows chat on gemma-3-12b-it-qat.

Models

The public image API lists four models: AnythingV2, RealisticV1, AnthroV2, and AnthroV3.

AnthroNAI is a first-party model in Imagen only. It is not on the public API, and the API rejects it.

Text models are Gemma-class and show up on GET /v1/models.

The catalog is short on purpose. StudioLM runs those models itself. It does not rent you a GPU by the second, and it does not sell a Pro image plan.

StudioLM, Replicate, and Fal.ai

Replicate and Fal.ai are marketplaces and serverless GPU platforms. They host thousands of community and vendor models, including video and audio. StudioLM is a still-image product: a free browser studio plus a one-cent API on a few models it operates.

Use StudioLM when you want stills and you do not want to pick a checkpoint or pay per second. Use Replicate or Fal.ai when you need a specific catalog model, or a video or audio pipeline.

Pricing

  • Imagen in the browser is free. No credit card to start. Generations do not cost credits. The site says donations from people who use it cover the GPU bill.
  • The public image API is $0.01 USD per image, prepaid.
  • There is no StudioLM Pro image plan and no per-second GPU bill.

Questions the site already answers

Is it actually free? Yes, in the browser. Only the developer API costs money.

Can I edit one part of an image? Yes. Mask it, describe the replacement, and only that region is regenerated.

Does it work on a phone? Yes. Imagen runs in the browser with its own phone layout.

Do I need an account? Yes, a free one. Email or Google.

Where to start

Open Imagen from studiolm.dev if you want to make pictures. Read the API quickstart if you want the same models from code.

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