What Stability AI (Stable Diffusion) is
Stability AI is a generative AI company behind the open-source Stable Diffusion image model, plus Stable Audio 3.0, Stable Video Diffusion, and a family of 3D models. Stable Audio 3.0 is an open-weight model family released May 20, 2026, trained on fully licensed data and aimed at artistic experimentation, available through a DAW plugin and StableAudio.com. Stability AI offers both a Platform API and a Self-Hosted License for on-premises deployment.
Funding snapshot
Series B closed August 25, 2026, bringing total funding to $232M, per Stability AI's own news page ('The Entertainment Industry's Biggest Names Back Stability AI in Latest Funding Round'); the round was reported at about $76M. The round welcomed Electronic Arts, Sony Music Group, Universal Music Group, Warner Music Group, and others, and came two years after Stability AI's mid-2024 recapitalisation, when Prem Akkaraju was appointed CEO (June 25, 2024) succeeding founder Emad Mostaque (departed March 2024).
Key features
- Stable Diffusion open-source image model family (Stable Diffusion 3.5 Large / Turbo / Medium, SDXL, SDXL Turbo)
- Stable Audio 3.0 — an open-weight model family released May 20, 2026, trained on fully licensed data, with a DAW plugin and an advanced generation experience on StableAudio.com
- Stable Video Diffusion and Story-to-Video pipelines
- 3D model family (Stable TripoSR, Fast 3D, Point Aware 3D)
- Deployment via Self-Hosted License (on-prem) and Platform API
Where it lives
Alternatives to consider
Related reading
3 pieces from AIUnpacker on Stability AI (Stable Diffusion)
Guides and articles
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Sources & media
- The Entertainment Industry's Biggest Names Back Stability AI in Latest Funding Round · Stability AI (official)
- Meet Stable Audio 3.0, the model family built for artistic experimentation with open-weight models · Stability AI (official)
- Stability AI — official site and model documentation · Stability AI (official)
- Stability AI Platform API documentation · Stability AI (official)
- Stability AI — Wikipedia · Wikipedia
- Stability AI
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