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LangChain
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LangChain
@LangChain
Powering the Agent Development Lifecycle. Makers of LangSmith and @LangChain_OSS and @LangChain_JS.
langchain.com
Joined November 2022
160
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255.3K
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  • Pinned
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    LangChain
    @LangChain
    Jun 1
    Stop manually triaging agent failures. Let LangSmith Engine fix it.
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    00:00
    48K
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    LangChain
    @LangChain
    9h
    Rubrics for Deep Agents, programmatic subagents, and everything new in LangSmith ā¤µļø
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    June 2026: LangChain Newsletter — Fleet On-Call Copilot, Deep Agents Rubrics, and More
    From langchain.com
    4.1K
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    LangChain
    @LangChain
    10h
    Fine-tuned models match frontier performance In our research with @FireworksAI_HQ, a fine-tuned @Alibaba_Qwen outperformed all model sizes. They’re also cheaper to run at scale 10-100x depending on trace volume and model choice As trace volumes grow, so will cost-savings on
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    4.8K
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    LangChain
    @LangChain
    10h
    We partnered with @FireworksAI_HQ to fine-tune an @Alibaba_Qwen judge model to detect ā€œPerceived Errorā€ from user interactions. See our findings ā¤µļø
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    Building a 100x Cheaper Trace Judge with Fireworks
    From langchain.com
    2K
  • LangChain reposted
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    LangChain
    @LangChain
    13h
    How do you construct, compact, and query a full-text search index when all your durable data lives in object storage? And where every GET costs 50–100ms? @ankush_gola11 + team on how we built and run SmithDB's inverted index in production.
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    How we built SmithDB’s inverted index for full-text search
    From langchain.com
    17K
  • LangChain reposted
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    Harrison Chase
    LangChain
    @hwchase17
    13h
    Technical blog on how we built SmithDB (our database purpose built for agent traces)
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    LangChain
    @LangChain
    13h
    How do you construct, compact, and query a full-text search index when all your durable data lives in object storage? And where every GET costs 50–100ms? @ankush_gola11 + team on how we built and run SmithDB's inverted index in production. langchain.com/blog/full-text…
    7.9K
  • LangChain reposted
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    Sydney Runkle
    LangChain
    @sydneyrunkle
    11h
    if you get 1% better every day then you're 37x better in a year (from @JamesClear's atomic habits book) my theory is you can do this for agents if you build a good continual learning loop which is what i'm working on at @LangChain with deepagents
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    3.4K
  • LangChain reposted
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    Jake Broekhuizen
    LangChain
    @jakebroekhuizen
    11h
    Stoked to be speaking at @aiDotEngineer next week. Come catch my session at 11.40am PT. Will be doing a deep dive into agent memory - 'sleep-time compute', 'dreaming' and the critical role traces play in the entire process
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    LangChain
    @LangChain
    12h
    If you're headed to @aiDotEngineer World's Fair next week, don't miss @jakebroekhuizen and @Vtrivedy10's stage sessions.
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    2.9K
  • user avatar
    LangChain
    @LangChain
    12h
    If you're headed to @aiDotEngineer World's Fair next week, don't miss @jakebroekhuizen and @Vtrivedy10's stage sessions.
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    Viv
    LangChain
    @Vtrivedy10
    12h
    excited to be speaking at @aiDotEngineer World Fair next week on Improving Agents, Continual Learning, and why we think a large part of it is...Data Mining! Trace Mining is how we understand agent behavior at scale so we can: - build evals/environments to hill-climb - gather
    11K
  • LangChain reposted
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    Ankush Gola
    LangChain
    @ankush_gola11
    13h
    Supporting sub-second full-text search on object storage is hard, especially when dealing with large agent observability workloads. Here is part 2 of our blog post that outlines how we accomplished this in SmithDB!
    user avatar
    LangChain
    @LangChain
    13h
    How do you construct, compact, and query a full-text search index when all your durable data lives in object storage? And where every GET costs 50–100ms? @ankush_gola11 + team on how we built and run SmithDB's inverted index in production. langchain.com/blog/full-text…
    3.6K
  • user avatar
    LangChain
    @LangChain
    12h
    Time to cook.
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    LangChain JS
    LangChain
    @LangChain_JS
    12h
    Agents are easy to demo locally. The hard part is shipping them inside a real app. We published a deployment cookbook for @LangChain agents: full-stack examples with streaming UI, subagents, thread history, and production persistence notes across common JS frameworks šŸš€ šŸ§µšŸ‘‡
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    5.6K
  • user avatar
    LangChain
    @LangChain
    13h
    How do you construct, compact, and query a full-text search index when all your durable data lives in object storage? And where every GET costs 50–100ms? @ankush_gola11 + team on how we built and run SmithDB's inverted index in production.
    Image
    How we built SmithDB’s inverted index for full-text search
    From langchain.com
    17K
    user avatar
    LangChain
    @LangChain
    13h
    Missed Part 1? Here’s how we built a custom inverted index from scratch for SmithDB.
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    Full Text Search in SmithDB: Designing an Inverted Index for Object Storage
    From langchain.com
    1.7K
  • LangChain reposted
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    Aditya Ekbote
    @adityaekbote
    15h
    It’s been great working with LangSmith over the past year as we’ve built our agentic platform to support hundreds of millions of clinical conversations annually. Tracing and evals are at the core of the improvement flywheel.
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    LangChain
    @LangChain
    15h
    LangSmith for Startups Spotlight: @AbridgeHQ āœ… Transforms patient-clinician conversations into contextually aware, clinically useful, and billable AI-generated notes. āœ… Deployed across 250 of the largest health systems in the country. āœ… Uses LangSmith as its core evals
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    2.5K
  • user avatar
    LangChain
    @LangChain
    15h
    LangSmith for Startups Spotlight: @AbridgeHQ āœ… Transforms patient-clinician conversations into contextually aware, clinically useful, and billable AI-generated notes. āœ… Deployed across 250 of the largest health systems in the country. āœ… Uses LangSmith as its core evals
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    00:00
    9.4K
    user avatar
    LangChain
    @LangChain
    15h
    Interested in solving healthcare's biggest challenges? @AbridgeHQ is hiring:
    abridge.com
    Life at Abridge | Abridge
    Discover what it’s like to work at Abridge, including our core values, the impact of our work, and testimonials from our employees.
    1.5K

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