Temporal has raised $300 million in a Series D round led by Andreessen Horowitz, valuing the company at $5 billion, with participation from Lightspeed Venture Partners and Sapphire Ventures. The firm develops an execution layer designed to support long-running agentic AI systems that often stall after pilot testing. Over the past year, adoption accelerated, with revenue growing more than 380% year over year, weekly usage rising 350%, and installations surpassing 20 million per month. The platform has processed 9.1 trillion lifetime cloud actions.
Venkat Venkataramani, VP App Infrastructure, OpenAI, said, “Durable Execution is a core requirement for modern AI systems, and Temporal offers a compelling platform to help build it in from the start. As AI systems become more complex and long-running, durability is as important as performance,” describing the role of reliable orchestration in large-scale deployments.
Chief Executive Officer Samar Abbas stated, “Agentic AI doesn’t fail because the models aren’t good enough. It fails because the systems around them can’t handle real-world execution.” The platform enables agents to operate for weeks without losing state, manage infrastructure costs, and trace workflow failures step by step. Customers such as ADP and The Washington Post use it for HR processes and media analysis pipelines, while high-availability architecture has maintained operations during outages and traffic surges exceeding 150,000 actions per second. The company plans to invest the funding into open-source development, cloud expansion, and new features aimed at moving agentic AI systems from experiments into production environments.