--- format: "aidr-story-markdown/v1" id: "ebb218f7ec0dce0865d287151f373daedc1925cc7b7a17c351edb05ba744dbd4" canonical_url: "https://aidr.today/ebb218f7?lang=en" title: "OpenAI Launches $400M Venture Fund, Over Twice Size of 2021 Debut" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-08-27T11:43:30.000Z" category: "Funding" topics: ["openai","microsoft","funding"] source_urls: ["https://huggingnews.com/ai/openai-launches-400m-venture-fund-over-twice-size-of-2021-debut-150fca0b","https://x.com/Techmeme/status/2092812167540260979","https://x.com/TFNBreakingNews/status/2092932029507833949","https://x.com/StockStormX/status/2092765836234592707","https://x.com/Polymarket/status/2092762504220823714"] summary: "OpenAI is investing approximately $400 million in its second startup fund to back early stage AI companies, an SEC filing shows. The new vehicle is more than double the size of the first fund, which raised $175 million in 2021. Outside investors, including Microsoft, contributed to the original 2021 fund. The current vehicle is the company's second dedicated venture fund for the AI sector." --- # OpenAI Launches $400M Venture Fund, Over Twice Size of 2021 Debut > [Open the canonical story]() **Published:** 2026-08-27T11:43:30.000Z **Category:** Funding **Topics:** openai, microsoft, funding ## Summary OpenAI is investing approximately $400 million in its second startup fund to back early stage AI companies, an SEC filing shows\. The new vehicle is more than double the size of the first fund, which raised $175 million in 2021\. Outside investors, including Microsoft, contributed to the original 2021 fund\. The current vehicle is the company's second dedicated venture fund for the AI sector\. ## Sources - [Story source]() - [Story source]() - [Supporting source]() - [Supporting source]() - [Supporting source]()