Stability AI

FundingStability AI raises a $76 million Series B

On 25 August 2026 Stability AI announced a $76 million Series B whose investors include Sony Music, Universal Music, Warner Music, Electronic Arts and AMD Ventures, taking the funding raised under CEO Prem Akkaraju to about $232 million.

ReleaseStability AI releases Stable Audio 3.0

In May 2026 Stability AI released Stable Audio 3.0 in four sizes, three of them open-weight. The two larger models generate up to 6 minutes 20 seconds of audio and support inpainting and continuation.

PolicyUK High Court rules on Getty Images v Stability AI

On 4 November 2025 the High Court of England and Wales ruled in Getty Images v Stability AI, rejecting Getty's secondary copyright claim but finding very limited trademark infringement over watermarks in some outputs.

ReleaseStability AI releases Stable Audio 2.5 for enterprises

On 10 September 2025 Stability AI released Stable Audio 2.5, an audio generation model the company describes as the first built for enterprise sound production at scale, trained on fully licensed data and offered through its API, partner platforms and on-premises licenses.

ReleaseStability AI releases Stable Diffusion 3.5

On 22 October 2024 Stability AI released Stable Diffusion 3.5 Large and Large Turbo, followed by the smaller Medium model on 29 October, all under a community license that is free for commercial use below $1 million in annual revenue.

PolicyUS judge lets artists' claims against image generators proceed

In August 2024 a US judge let illustrators suing Stability AI, Midjourney, DeviantArt and Runway AI pursue some copyright and trademark claims, while leaving the core training-data question undecided.

HireStability AI names Prem Akkaraju CEO and raises new funding

On 25 June 2024 Stability AI appointed Prem Akkaraju, former CEO of Weta Digital, as chief executive and named former Facebook president Sean Parker executive chairman, alongside new investment from Greycroft, Coatue and others; Bloomberg reported the round at $80 million.

ReleaseStability AI releases open weights for Stable Diffusion 3 Medium

On 12 June 2024 Stability AI released the weights of Stable Diffusion 3 Medium, a 2-billion-parameter diffusion transformer, on Hugging Face under a non-commercial license.

ReleaseStability AI releases Stable Audio 2.0

On 3 April 2024 Stability AI released Stable Audio 2.0, a model that generates stereo tracks of up to three minutes, adds audio-to-audio transformation, and was trained on more than 800,000 licensed files.

DepartureEmad Mostaque resigns as Stability AI CEO

On 23 March 2024, Emad Mostaque stepped down as CEO and board director of Stability AI; the company named interim co-CEOs and began searching for a permanent leader.

ReleaseStability AI previews Stable Diffusion 3

On 22 February 2024 Stability AI announced an early preview of Stable Diffusion 3, a text-to-image suite from 800M to 8B parameters that combines a diffusion transformer with flow matching.

ReleaseStability AI releases Stable Video Diffusion

On 21 November 2023 Stability AI released Stable Video Diffusion, its first generative video foundation model, as a research preview of two image-to-video models with 14 and 25 frames.

ReleaseStability AI launches Stable Audio

On 13 September 2023 Stability AI released Stable Audio, a web tool that generates music and sound from text prompts, built on a latent diffusion model trained with licensed content from the AudioSparx library.

ReleaseStability AI releases SDXL 1.0

On 26 July 2023 Stability AI announced SDXL 1.0, its new flagship open image model, after a limited research-only release of SDXL 0.9; a one-step SDXL Turbo followed in November.

ReleaseStability AI launches the Stable LM language models

On 19 April 2023 Stability AI released Stable LM, open language models at 3B and 7B parameters, with base versions under a share-alike license and research-only instruction-tuned versions.

ReleaseAWS announces Amazon Bedrock and Titan models

On 13 April 2023 AWS announced Amazon Bedrock, a service giving API access to foundation models from several providers, alongside its first Titan models. Bedrock became generally available on 28 September 2023.

PolicyOpen letter calls for a six-month pause on giant AI experiments

On 22 March 2023 the Future of Life Institute published an open letter asking all AI labs to pause for at least six months the training of systems more powerful than GPT-4, and proposing governance measures for advanced AI.

MilestoneEleutherAI launches a nonprofit research institute

On 2 March 2023 EleutherAI, the volunteer group known for openly training GPT-3-like models, announced it had formed a nonprofit research institute backed by Stability AI, Hugging Face, Canva and others.

PolicyArtists sue Stability AI, Midjourney and DeviantArt over training data

In January 2023 three artists filed a class-action copyright suit against Stability AI, Midjourney and DeviantArt, saying their image generators were trained on artists' work without permission — an early test of how copyright law applies to generative AI.

ReleaseStability AI releases Stable Diffusion 2.0

On 24 November 2022 Stability AI released Stable Diffusion 2.0 as open source, with an OpenCLIP text encoder and a revised training-data filter; version 2.1 followed on 7 December.

FundingStability AI raises $101 million

On 17 October 2022 Stability AI announced $101 million in funding, led by Coatue, Lightspeed Venture Partners and O'Shaughnessy Ventures, to accelerate open AI models across several media.

ReleaseStability AI publicly releases Stable Diffusion

On 22 August 2022 Stability AI publicly released Stable Diffusion, a latent text-to-image diffusion model whose weights, code and model card were published on Hugging Face.