Accel Expected to Front $1 B Investment in AI Firm Thinking Machines, Valuing It at $40 B

Sources familiar with the situation say venture‑capital firm Accel is in the final stages of talks to lead a $1 billion funding round for AI startup Thinking Machines, a transaction that would value the company at about $40 billion.

The fast‑growing Thinking Machines has reported an annual revenue run rate of more than $100 million. Though modest next to the proposed $40 billion valuation, the number highlights the firm’s growing market foothold and its capacity to produce substantial cash flow amid stiff competition.

If realised, the deal would rank among the biggest single‑partner investments in recent VC history, signalling Accel’s faith in the startup’s tech roadmap and the wider eagerness for AI funding. Analysts point out that the implied valuation equates to over 400 times the present revenue run rate—a lofty multiple that nonetheless mirrors current market trends of valuing future potential in nascent AI platforms.

Observers note that the capital raise arrives as AI firms scramble to obtain the compute power and talent required for scaling massive models. An injection of this magnitude would allow Thinking Machines to speed up research, widen its product suite, and possibly branch into sectors like healthcare, finance and autonomous systems. Moreover, the transaction sends a message to the investment community that ample funding is still on the table for companies showing robust growth figures and a well‑defined strategic plan.

Should the round conclude as described, it would probably become a reference point for future financing in the industry and may push competing firms to chase similar valuations. The result could also shape how public markets assess private AI‑centric companies, particularly as some contemplate early listings. At present, Accel and Thinking Machines have opted not to comment publicly, so the specifics of the negotiation and the expected closing timetable remain to be confirmed in the coming weeks.