Stability AI (Stable Diffusion)

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

Stable Audio (StableAudio.com and DAW plugin)Self-Hosted License (on-prem)Platform APIAmazon BedrockHugging FaceDAW plugin for Stable Audio

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Sources & media

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