SHSelfHostIndex

Fooocus-API vs stable-diffusion.cpp

A side-by-side comparison of two self-hosted ai image generation options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FO Fooocus-API Self-hosted REST API for the Fooocus image generator VS ST stable-diffusion.cpp Stable Diffusion inference in plain C/C++
FeatureFooocus-APIstable-diffusion.cpp
Deploy effortUnder-an-hour setupRead-the-docs project
Health score60 · Good91 · Excellent
CategoryAI Image GenerationAI Image Generation
LicenseGPL-3.0MIT
LanguagePythonC++
Setup difficultyMediumHard
Min. RAM8,192 MB4,096 MB
Deploymentdocker, sourcebinary, bare-metal
GitHub stars★ 674★ 7,132
First released20232023
ReplacesDALL-E API, MidjourneyMidjourney

What are Fooocus-API and stable-diffusion.cpp?

Fooocus-API

Fooocus-API is an open-source project that wraps the Fooocus image generation engine in a REST API. It allows other applications to request Stable Diffusion image generation from a self-hosted backend.

  • REST API for image generation
  • Async job queue
  • OpenAPI documentation
  • Docker deployment

stable-diffusion.cpp

stable-diffusion.cpp is a lightweight C/C++ implementation of Stable Diffusion inference. It runs image generation efficiently on CPUs and GPUs without heavy Python dependencies.

  • Pure C/C++ inference
  • Low memory usage
  • Quantization support
  • No Python required

Fooocus-API vs stable-diffusion.cpp: key differences

Fooocus-API is written in Python, while stable-diffusion.cpp is built with C++. Licensing differs — GPL-3.0 for Fooocus-API versus MIT for stable-diffusion.cpp. Stable-diffusion.cpp is the lighter option, starting around 4,096 MB of RAM against 8,192 MB for Fooocus-API. Stable-diffusion.cpp has the considerably larger community, at 7,132 GitHub stars versus 674. Fooocus-API lists first-class Docker deployment; stable-diffusion.cpp does not.

Why pick each one

Choose Fooocus-API if…

  • Released under the GPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in Python
Fooocus-API details

Choose stable-diffusion.cpp if…

  • Released under the MIT license
  • Mature project with 7.1k GitHub stars
  • Written in C++
stable-diffusion.cpp details

Frequently asked questions

Is Fooocus-API or stable-diffusion.cpp better?

Neither is universally better. stable-diffusion.cpp has the larger community, while Fooocus-API is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are Fooocus-API and stable-diffusion.cpp free and open-source?

Yes. Fooocus-API is licensed under GPL-3.0 and stable-diffusion.cpp under MIT. Both can be self-hosted at no software cost.

Can I run Fooocus-API and stable-diffusion.cpp with Docker?

Fooocus-API: yes. stable-diffusion.cpp: check the project docs for container support.

Which is lighter on resources, Fooocus-API or stable-diffusion.cpp?

stable-diffusion.cpp has the smaller minimum footprint at 4,096 MB of RAM, compared to about 8,192 MB for Fooocus-API. Real-world usage depends on library size, user count, and enabled features.

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