--- title: LangChain raises $125M to build the platform for agent... description: LangChain announced a $125M Series B at a $1.25B valuation led by IVP, alongside existing investors Sequoia, Benchmark, and Amplify, plus new investors... canonical: https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: LangChain raises $125M to build the platform for agent engineering | daily.dev og:description: LangChain announced a $125M Series B at a $1.25B valuation led by IVP, alongside existing investors Sequoia, Benchmark, and Amplify, plus new investors... og:url: https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt og:image: https://api.daily.dev/og/posts/YOAItYtPt.png og:image:alt: LangChain raises $125M to build the platform for agent engineering og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # LangChain raises $125M to build the platform for agent engineering **[LangChain](https://daily.dev/sources/langchain)** · 4 min read · 0 upvotes · 0 comments ## Summary LangChain announced a $125M Series B at a $1.25B valuation led by IVP, alongside existing investors Sequoia, Benchmark, and Amplify, plus new investors including CapitalG and Sapphire Ventures. The company is positioning itself as the platform for 'agent engineering' and is releasing LangChain and LangGraph 1.0 (with no breaking changes until 2.0), a new Insights Agent for LangSmith Observability, and a no-code Agent Builder currently in private preview. LangSmith has evolved into a full platform covering observability, evaluation, deployment, and agent building. LangChain and LangGraph now see a combined 90M monthly downloads, 35% of the Fortune 500 use their services, and LangSmith trace volume grew 12x year over year. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What changed in the LangChain 1.0 release compared to earlier versions? LangChain 1.0 is a complete rewrite of the langchain package, now opinionated, focused, and powered by langgraph's runtime. It emphasizes pre-built architectures for common agent patterns, improved model integrations, and commits to no breaking changes until a future 2.0 release, alongside revamped documentation. _Developers upgrading agent stacks can track framework changes like LangChain 1.0 on daily.dev._ ### How much funding did LangChain raise in its Series B round and at what valuation? LangChain raised $125M at a $1.25B valuation. IVP led the round, joined by existing investors Sequoia, Benchmark, and Amplify, plus new investors CapitalG and Sapphire Ventures, along with strategic investors including ServiceNow Ventures, Workday Ventures, Cisco Investments, Datadog Ventures, and Databricks Ventures. _Anyone evaluating agent tooling vendors can follow funding milestones like this on daily.dev._ ### What is LangSmith and what capabilities does it now provide for agent development? LangSmith is a comprehensive platform for agent engineering covering the full lifecycle: observability with detailed tracing and trend metrics, evaluation to score agent behavior against production and offline datasets, deployment for shipping agents built for long-running tasks, and a private-preview no-code Agent Builder for text-to-agent creation. _Teams choosing between agent observability tools can compare options like LangSmith on daily.dev._ ## Similar posts on daily.dev - [Reflections on Three Years of Building LangChain](https://daily.dev/posts/reflections-on-three-years-of-building-langchain-1qbekvadm) · LangChain · 11 upvotes · 0 comments - [Open source agentic startup LangChain hits $1.25B valuation](https://daily.dev/posts/open-source-agentic-startup-langchain-hits-1-25b-valuation-cp8ytqp3y) · TechCrunch · 0 upvotes · 0 comments - [LangChain's Second Birthday](https://daily.dev/posts/langchain-s-second-birthday-gtx6fvbxv) · LangChain · 2 upvotes · 0 comments --- Tags: [#ai-agents](https://daily.dev/tags/ai-agents), [#venture-capital](https://daily.dev/tags/venture-capital), [#langchain](https://daily.dev/tags/langchain), [#langgraph](https://daily.dev/tags/langgraph), [#llmops](https://daily.dev/tags/llmops) [View this post on daily.dev](https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"LangChain raises $125M to build the platform for agent engineering","url":"https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt"},"datePublished":"2026-08-26T15:27:48.394Z","dateModified":"2026-09-13T21:35:40.376Z","description":"LangChain announced a $125M Series B at a $1.25B valuation led by IVP, alongside existing investors Sequoia, Benchmark, and Amplify, plus new investors...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/cb0cceea0d23b88053ebae9246a2c904?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/cb0cceea0d23b88053ebae9246a2c904?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"LangChain","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"LangChain","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/0f4f2629e0724a849823f8cd0d913e13","url":"https://daily.dev/sources/langchain"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"ai-agents,venture-capital,langchain,langgraph,llmops","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"LangChain","item":"https://daily.dev/sources/langchain"},{"@type":"ListItem","position":3,"name":"LangChain raises $125M to build the platform for agent engineering"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/langchain-raises-125m-to-build-the-platform-for-agent-engineering-yoaitytpt#faq","mainEntity":[{"@type":"Question","name":"What changed in the LangChain 1.0 release compared to earlier versions?","acceptedAnswer":{"@type":"Answer","text":"LangChain 1.0 is a complete rewrite of the langchain package, now opinionated, focused, and powered by langgraph's runtime. 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