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Temporal closes $550M Series E at $12.55B valuation as AI agent workloads drive durable execution demand
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Temporal raised a $550M Series E at a $12.55B valuation, positioning its durable execution platform as critical infrastructure for long-running AI agent workflows that require fault tolerance over days or weeks rather than seconds.
The scale of this round signals that orchestration for long-running, stateful workflows is becoming foundational infrastructure for AI systems rather than a niche concern. With OpenAI's usage growing 60-fold in under a year and revenue run rate tripling, durable execution appears to be shifting from optional to essential as AI agents touch production plumbing.
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Temporal raised $550M in a Series E at a $12.55B valuation, co-led by Lightspeed with participation from Wellington Management, Goldman Sachs Alternatives, Tiger Global, T. Rowe Price, and SV Angel, alongside returning investors including a16z, Sequoia, and Index.
Annualized revenue run rate grew more than 200% year over year, net dollar retention stayed above 200% since February, and the platform processed 1.9 trillion billable actions in August, up more than 350% year over year.
OpenAI's use of Temporal grew 60-fold in under a year, with OpenAI's VP of Infrastructure calling durable execution a core requirement for modern AI systems and citing it as the reason OpenAI invested in building a durable orchestration framework powered by Temporal.
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