Temporal’s valuation spikes to $12.6 billion in Lightspeed-led funding round

Temporal said on Monday it has raised $550 million in a late-stage funding round, more than doubling its valuation to $12.55 billion in seven months, as investors seek software startups seen as benefiting from the AI boom.

Temporal makes open-source software that ‌helps applications, ⁠including AI ⁠agents, recover from failure, reducing the need for engineers to write custom recovery code.

AI companies accounted for 86% of U.S. venture ​deal value in the first half of 2026, according to the Pitchbook-NVCA Venture Monitor, despite concerns over high ​spending and calls to slow ⁠development.