--- format: "aidr-story-markdown/v1" id: "a1e50a5d40eeb6c43e1021448ea84cd919c8feb1458505ad48e70478de1c0519" canonical_url: "https://aidr.today/a1e50a5d?lang=en" title: "Thinking Machine Labs Closing $5B Funding Round at $40B Pre-Money Valuation" lang: "en" requested_lang: "en" available_langs: ["en","vi"] translation_fallback: null fallback_fields: [] published_at: "2026-11-06T01:08:41.000Z" category: "Funding" topics: ["funding"] source_urls: ["https://marketbrief.now/startups/thinking-machine-labs-closing-5b-funding-round-at-40b-pre-money-valuatio-1d4a1ba6","https://huggingnews.com/startups/thinking-machine-labs-closing-5b-funding-round-at-40b-pre-money-valuatio-1d4a1ba6"] summary: "Thinking Machine Labs, founded by former OpenAI chief technology officer Mira Murati, is in the final stages of a $5B funding round led by Accel that would establish a $40B pre-money valuation. The current valuation represents a decline from the $50B target sought last year but remains significantly higher than the more than $10B valuation following its $2B seed round. The company has lost roughly 33% of its founding team to competitors including Meta and OpenAI." --- # Thinking Machine Labs Closing $5B Funding Round at $40B Pre\-Money Valuation > [Open the canonical story]() **Published:** 2026-11-06T01:08:41.000Z **Category:** Funding **Topics:** funding ## Summary Thinking Machine Labs, founded by former OpenAI chief technology officer Mira Murati, is in the final stages of a $5B funding round led by Accel that would establish a $40B pre\-money valuation\. The current valuation represents a decline from the $50B target sought last year but remains significantly higher than the more than $10B valuation following its $2B seed round\. The company has lost roughly 33% of its founding team to competitors including Meta and OpenAI\. ## Sources - [Story source]() - [Story source]()