Stability AI vs OpenAI
Side-by-side comparison of AI visibility scores, market position, and capabilities
Open-source generative AI company behind Stable Diffusion. Image, video, audio, 3D models. Founded 2019, London. Raised $200M+. ~$50M revenue (2024). EA partnership. Private.
About
Stability AI is a generative AI company founded in 2019 by Emad Mostaque and Cyrus Hodes, headquartered in London. Rose to prominence with Stable Diffusion (August 2022), an open-weights text-to-image model. Raised over $200 million total. Under new CEO Prem Akkaraju (after Mostaque's departure), the company eliminated debt and achieved triple-digit revenue growth.
GPT-5 and o3 model family at $25B+ ARR; $840B post-money valuation (Feb 2026 round); ChatGPT 1B+ users; largest private fundraise in history ($110B). Competing with Anthropic Claude 4, Google Gemini 3, Meta Llama 4.
About
OpenAI is a San Francisco-based artificial intelligence company developing and deploying large-scale AI systems — including GPT-4o, o1 reasoning models, DALL-E 3 image generation, Sora video generation, and the Whisper speech recognition model — through the ChatGPT consumer product and OpenAI API for developers and enterprise customers. Founded in 2015 as a nonprofit by Sam Altman, Elon Musk, Greg Brockman, and others and restructured into a capped-profit company, OpenAI raised $157 billion in total funding including a $6.6 billion round in October 2024 at a $157 billion valuation and a $40 billion round from SoftBank in 2025, generating $3.7 billion in annualized revenue in 2024 with 400 million weekly ChatGPT users.
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