✦ AI AI Company Comparison

OpenAI vs Stability AI — IPO & Funding Comparison

Side-by-side IPO readiness, funding history, and valuation comparison. Data sourced by TechStackIPO.

● Data current Last verified: May 12, 2026
Metric OpenAI Stability AI
Valuation$852B$1B
Total Funding$55.4B$331M
IPO StatusPre-IPOPre-IPO
SectorArtificial IntelligenceArtificial Intelligence
StagePre-IPOSeed
HeadquartersSan Francisco, CALondon, UK
CEOSam AltmanPrem Akkaraju
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OpenAI

OpenAI is valued at $852B — the world's most valuable AI company, backed by $27B in funding. Track IPO readiness score, funding rounds, and timeline.

IndustryArtificial Intelligence
StagePre-IPO
IPO StatusPre-IPO
Valuation$852B
Total Funding$55.4B
HeadquartersSan Francisco, CA

Stability AI

Open-source AI company behind Stable Diffusion image generation model.

IndustryArtificial Intelligence
StageSeed
IPO StatusPre-IPO
Valuation$1B
Total Funding$331M
HeadquartersLondon, UK

Frequently Asked Questions

What are the valuations of OpenAI and Stability AI? +

OpenAI is valued at $852B. Stability AI is valued at $1B. Both valuations are based on the most recent private funding rounds tracked by TechStackIPO.

How much has each company raised? +

OpenAI has raised $55.4B. Stability AI has raised $331M.

What is the IPO status of OpenAI and Stability AI? +

OpenAI is currently pre-IPO. Stability AI is currently pre-IPO. Track both on TechStackIPO for S-1 filings and IPO announcements.

Are OpenAI and Stability AI in the same sector? +

OpenAI operates in Artificial Intelligence, while Stability AI operates in Artificial Intelligence.

What are the main differences between OpenAI and Stability AI? +

OpenAI is a Artificial Intelligence company valued at $852B with $55.4B raised. Stability AI is a Artificial Intelligence company valued at $1B with $331M raised. See TechStackIPO's full side-by-side comparison for IPO readiness scores, funding timelines, and investor data.

How can I invest in OpenAI or Stability AI before their IPO? +

Accredited investors can access pre-IPO shares in OpenAI and Stability AI through secondary market platforms, pre-IPO funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace section tracks available access options for both companies. Pre-IPO investments carry higher risk and limited liquidity.