1d:I[70616,["/_next/static/chunks/0kcf5dt6yxdox.js","/_next/static/chunks/1su5n1uv1ti4s.js","/_next/static/chunks/0gvke1wv6udfg.js","/_next/static/chunks/1dfrle3jgmlzh.js","/_next/static/chunks/162lgvduyr-fa.js","/_next/static/chunks/2gcnnopam8e9w.js","/_next/static/chunks/2g60iab5a1pkg.js"],"Breadcrumb"] 1e:I[90762,["/_next/static/chunks/0kcf5dt6yxdox.js","/_next/static/chunks/1su5n1uv1ti4s.js","/_next/static/chunks/0gvke1wv6udfg.js","/_next/static/chunks/1dfrle3jgmlzh.js","/_next/static/chunks/162lgvduyr-fa.js","/_next/static/chunks/2gcnnopam8e9w.js","/_next/static/chunks/2g60iab5a1pkg.js"],"ArticleGrid"] 1f:T16ab,

Temporal Technologies said on September 14 that it raised a $550 million Series E at a $12.55 billion valuation, co-led by Lightspeed, in a round the company frames as a bet on software that has to keep running long after the request that started it is gone.

The Seattle company sells what it calls Durable Execution: developers write ordinary application code, and Temporal persists the state of that code across crashes, restarts and outages, so a process can pause for days waiting on a human approval and resume exactly where it stopped. That guarantee was originally pitched at payments, onboarding and order fulfillment. In its funding announcement, Temporal says customers now ask it to hold agent workloads that run for days, weeks or months.

Key takeaways

Temporal raised a $550 million Series E at a $12.55 billion valuation, co-led by Lightspeed with Wellington Management, Goldman Sachs Alternatives and Tiger Global.
The platform processed 1.9 trillion billable actions in August alone, up more than 350% year over year, across more than 4,300 paying customers.
The new valuation is 2.5 times the $5 billion mark set by February's $300 million Series D, taking total capital raised to roughly $1.2 billion.

Who is in the round

Lightspeed co-led the Series E alongside Wellington Management, Growth Equity at Goldman Sachs Alternatives and Tiger Global, with participation from T. Rowe Price and SV Angel. Returning investors include Andreessen Horowitz, Sequoia, Index, GIC, Sapphire Ventures and Amplify.

Andreessen Horowitz led the $300 million Series D that valued Temporal at $5 billion in February. Doubling that figure in roughly seven months puts the company in the same repricing band as the agent-infrastructure startups investors have been chasing all year, including River AI's $1.1 billion round.

The numbers behind the raise

Temporal's disclosures are unusually specific for a private company. Annualized revenue run rate is up more than 200% year over year, and net dollar retention has stayed above 200% since February — a level that implies existing accounts alone are more than doubling their spend. Paying customers passed 4,300, up 139% year over year, while open-source installations crossed 43 million, a 134% increase since December 2025.

Consumption grew faster than either figure. The platform handled 1.9 trillion billable actions in August, more than 350% above the same month a year earlier. Temporal points to Snap moving 414 million Stories a day through the system and JPMorgan Chase running it in regulated production. Its sharpest data point is OpenAI, whose usage the company says has grown 60-fold in under a year.

Why agents changed the pitch

Temporal's argument is that a working agent demo is now cheap and a trustworthy agent is not. Once a model starts touching the systems that move money rather than sitting on top of them, every retry, timeout and partial failure becomes a correctness problem rather than a logging problem — the same workflow orchestration issue the founders have chased for a decade.

Co-founders Samar Abbas and Maxim Fateev built Amazon's Simple Workflow Service, co-created Microsoft's open-source Durable Task Framework that became Azure Durable Functions, and later built Cadence at Uber before leaving in 2019 to start Temporal. OpenAI's VP of infrastructure, Venkat Venkataramani, said durable execution has become a core requirement for modern AI systems and cited it as a reason OpenAI built its own durable orchestration framework on Temporal.

Reliability has never been optional, but AI has quickly raised the cost of skipping it, Abbas said, describing the round as a bet that far more of the world's most demanding software will be built on that foundation.

What the money buys

The capital goes toward global operations on top of a team that doubled to 570 people over the past year, plus deeper investment in the platform's core primitives and the reliability and security work enterprise customers keep requesting. The open question is whether durable execution stays a distinct category or gets absorbed into the agent frameworks shipping from every major cloud — a race in which Temporal's answer is that it already runs the plumbing underneath several of them.

FAQ

What is Durable Execution?

Durable Execution is a model where a platform persists the full state of a running program, including its position in the code, so the work survives process crashes, machine failures and long waits. Developers write normal code instead of hand-building retry queues and state machines. Temporal popularized the term and ships it as an open-source platform plus a managed cloud.

How much has Temporal raised in total?

The $550 million Series E brings Temporal's total capital raised to roughly $1.2 billion. That follows a $300 million Series D led by Andreessen Horowitz in February 2026, which valued the company at $5 billion.

Who uses Temporal in production?

Temporal reports more than 4,300 paying customers, including OpenAI, Snap, NVIDIA and JPMorgan Chase. Snap runs 414 million Stories a day on the platform, and JPMorgan Chase uses it in regulated production environments.

a:["$","div",null,{"className":"mx-auto max-w-7xl px-4 py-8 sm:px-6","children":[["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"{\"@context\":\"https://schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https://ainewsway.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"#durable-execution\",\"item\":\"https://ainewsway.com/tag/durable-execution\"}]}"}}],["$","script",null,{"type":"application/ld+json","dangerouslySetInnerHTML":{"__html":"{\"@context\":\"https://schema.org\",\"@type\":\"ItemList\",\"@id\":\"https://ainewsway.com/tag/durable-execution#itemlist\",\"name\":\"#durable-execution Articles\",\"numberOfItems\":1,\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"url\":\"https://ainewsway.com/articles/temporal-raises-550m-as-ai-agents-start-running-for-weeks-mu2g9eh6\",\"name\":\"Temporal Raises $550M as AI Agents Start Running for Weeks\"}]}"}}],["$","$L1d",null,{"items":[{"label":"# durable-execution"}]}],["$","h1",null,{"className":"mb-8 text-3xl font-bold text-zinc-900 dark:text-zinc-100","children":["#","durable-execution"]}],[["$","$L1e",null,{"articles":[{"id":"c1595c26-fe98-4020-96f8-8efb76f4585e","slug":"temporal-raises-550m-as-ai-agents-start-running-for-weeks-mu2g9eh6","title":"Temporal Raises $550M as AI Agents Start Running for Weeks","subtitle":"The durable execution company processed 1.9 trillion billable actions in August alone, up more than 350% year over year.","content":"$1f","excerpt":"Temporal Technologies said on September 14 that it raised a $550 million Series E at a $12.55 billion valuation, co-led by Lightspeed, in a round the company fr...","coverImage":"https://cdn.ainewsway.com/uploads/2026/09/5139b5ba-8e4c-4df5-b006-0d7aa49b08f0.webp","coverImageCaption":"Temporal's Durable Execution platform keeps long-running workflows alive across server failures in modern data centers.","authorId":"6773f67d-d7fa-4b19-8f38-384f10ac761b","status":"PUBLISHED","publishedAt":"2026-09-15T09:09:11.910Z","viewCount":0,"likeCount":0,"readingTime":5,"isFeatured":false,"isBreakingNews":false,"metaTitle":"Temporal Raises $550M Series E at $12.55B Valuation","metaDescription":"Temporal's $550M Series E values it at $12.55B as AI agents push workflows from seconds to weeks. Inside the numbers: 1.9T actions, 4,300 customers.","metaKeywords":["Temporal Series E","durable execution","AI agent infrastructure","Temporal valuation","workflow orchestration","Lightspeed","AI infrastructure funding"],"ogImage":null,"aiSummary":"Temporal Technologies raised a $550 million Series E at a $12.55 billion valuation on September 14, co-led by Lightspeed, more than doubling the $5 billion price it set in February. The durable execution platform processed 1.9 trillion billable actions in August, up over 350% year over year, with 4,300-plus paying customers including OpenAI, Snap and JPMorgan Chase. The raise signals that reliability infrastructure, not model access, is becoming the bottleneck for long-running AI agents.","aiTags":[],"sentiment":null,"articleType":"NEWS","videoEmbed":null,"videoType":null,"seoScore":95,"isAutoGenerated":true,"isBackfill":false,"pipelineStage":null,"copyrightScore":null,"similarityScore":null,"matchedSourceId":null,"createdAt":"2026-09-15T09:08:45.068Z","updatedAt":"2026-09-15T15:10:50.467Z","contentUpdatedAt":"2026-09-15T15:10:50.466Z","deletedAt":null,"author":{"id":"6773f67d-d7fa-4b19-8f38-384f10ac761b","name":"Seung Jung","username":"Seung Jung","avatar":null},"categories":[{"id":"8126f4b3-ce4a-464f-bc70-7c3c39d5540b","name":"Tech & Business","slug":"tech-business"}],"tags":[{"id":"971d527f-0508-47c9-aac1-39914a5f883c","name":"AI Agents","slug":"ai-agents"},{"id":"e9d9ed20-6211-4e4c-a2af-eb3c5eced7c7","name":"AI Infrastructure","slug":"ai-infrastructure"},{"id":"f8b70021-64f7-4e47-9575-69daa5b46198","name":"Temporal","slug":"temporal"},{"id":"23363670-0861-467f-bc00-2de46684ef59","name":"Durable Execution","slug":"durable-execution"},{"id":"27909479-a027-4f69-88ee-d5e19f425ff9","name":"Series E","slug":"series-e"},{"id":"0233ac1b-71d5-493c-b4d7-182ab520c202","name":"Workflow Orchestration","slug":"workflow-orchestration"}],"translations":[{"id":"be4a3502-5a1d-44d0-8f49-4d471f5da945","language":"es","title":"Temporal levanta 550 millones mientras los agentes de IA empiezan a ejecutarse durante semanas","subtitle":"La compañía de ejecución duradera procesó 1,9 billones de acciones facturables solo en agosto, más de un 350% por encima del año anterior","excerpt":"Temporal Technologies levantó una Serie E de 550 millones de dólares con una valoración de 12.550 millones, coliderada por Lightspeed.","metaTitle":"Temporal levanta 550 M$ con una valoración de 12.550 M$","metaDescription":"La Serie E de 550 M$ valora a Temporal en 12.550 M$ mientras los agentes de IA llevan los flujos de segundos a semanas: 1,9 billones de acciones y 4.300 clientes."},{"id":"ae1ee928-9420-44df-90b9-5daa303859ee","language":"ja","title":"AIエージェントが数週間走る時代へ、Temporalが5億5,000万ドルを調達","subtitle":"永続実行を手がける同社は8月だけで課金対象アクション1兆9,000億件を処理し、前年同月比350%超の伸びを記録した","excerpt":"Temporal Technologiesが評価額125億5,000万ドルでシリーズE 5億5,000万ドルを調達した。Lightspeedが共同リードを務めた。","metaTitle":"Temporal、評価額125.5億ドルでシリーズE 5.5億ドル調達","metaDescription":"AIエージェントがワークフローを秒単位から週単位へ押し広げるなか、Temporalは125億5,000万ドルと評価された。アクション1兆9,000億件、顧客4,300社が裏づけだ。"},{"id":"d32f4c0d-7455-4a37-9457-e0b0f29306d1","language":"ko","title":"몇 주씩 돌아가는 AI 에이전트 시대… Temporal, 5억 5,000만 달러 조달","subtitle":"지속 실행 기업 Temporal은 8월 한 달에만 과금 액션 1조 9,000억 건을 처리해 전년 대비 350% 넘게 늘었다","excerpt":"Temporal Technologies가 기업가치 125억 5,000만 달러로 시리즈 E 5억 5,000만 달러를 조달했다. 라이트스피드가 공동 주도했다.","metaTitle":"Temporal, 125.5억 달러 가치로 시리즈 E 5.5억 달러 조달","metaDescription":"AI 에이전트가 워크플로를 초 단위에서 주 단위로 늘리는 가운데 Temporal이 125억 5,000만 달러 가치를 인정받았다. 액션 1조 9,000억 건, 고객 4,300곳이 근거다."},{"id":"c7437d2e-34a6-4d2e-a280-bb43c8fcc5f1","language":"zh","title":"AI 代理開始一跑數週，Temporal 募得 5.5 億美元","subtitle":"這家持久執行公司光是 8 月就處理 1.9 兆次計費動作，年增超過 350%","excerpt":"Temporal Technologies 完成 5 億 5,000 萬美元 E 輪募資，估值達 125 億 5,000 萬美元，由 Lightspeed 共同領投。","metaTitle":"Temporal 以 125.5 億美元估值募得 5.5 億美元 E 輪","metaDescription":"AI 代理把工作流程從數秒拉長到數週，Temporal 的 5.5 億美元 E 輪讓它估值達 125.5 億美元。撐起數字的是 1.9 兆次動作與 4,300 家客戶。"}],"celebrities":[{"id":"de525119-383f-4f8d-9890-290e658dcc43","nameKo":"템포럴","nameEn":"Temporal Technologies","slug":"temporal-technologies","profileImage":null}]}]}],"$L20"]]}]

#durable-execution

AI 代理開始一跑數週，Temporal 募得 5.5 億美元

訂閱新聞簡報

#durable-execution

AI 代理開始一跑數週，Temporal 募得 5.5 億美元