Stability AI
The UK firm that open-sourced Stable Diffusion weights
WHAT IT IS
Stability AI was founded in London in 2019 and focuses on open-weight generative models. In 2022 it released Stable Diffusion, publishing the weights of a text-to-image model, and later added video and 3D generators.
Why it matters
Stable Diffusion shipped with open weights, turning text-to-image from a closed service of a few companies into a model anyone could run and fine-tune locally — which directly spawned a large community around it.
Key milestones
- 2019
Founded in London
- 2022
Released Stable Diffusion with open weights
- 2023
Released Stable Video Diffusion
Representative products
3Stable Diffusion
2022Released text-to-image weights openly and small enough to run on consumer GPUs
Stable Video Diffusion
2023Turns a single still image into a short video with a diffusion model
Stable Video 3D
2024Reconstructs multi-view and 3D shape of an object from a single image