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Jacob Lee Profile
Jacob Lee

@Hacubu

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LangGraph.js + @LangChainAI 🦜🔗 JS/TS maintainer

San Francisco, CA
Joined November 2012
Don't wanna be here? Send us removal request.
@Hacubu
Jacob Lee
1 month
🥳 Thanks to the entire @LangChainAI 🦜🔗 JS/TS community for making 2024 fantastic! We passed 20 MILLION core downloads in 2024 (LangGraph.js + LangChain.js >0.0.x), and 2.6 million in November alone! And I'd like to single out a few contributors in particular... 🧵 (1/11)
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@Hacubu
Jacob Lee
5 hours
RT @dschenkelman: 🐍 🤝 @LangChainAI 🤝 @auth0 Fine Grained Authorization for RAG 👇 by @bajcmartinez
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@Hacubu
Jacob Lee
10 hours
RT @nomic_ai: Nomic Embed Text V2 is now available - First general purpose Mixture-of-Experts (MoE) embedding model - SOTA performance on…
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@Hacubu
Jacob Lee
10 hours
RT @hwchase17: Excited to see this launch! Try it out in LangChain today
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@Hacubu
Jacob Lee
14 hours
"But yeah... damn indeed. 🫡" - Claude, 2025
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@Hacubu
Jacob Lee
16 hours
RT @LangChainAI: How Klarna scaled customer support for 85 million active users with LangGraph & LangSmith @Klarna is setting the standard…
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@Hacubu
Jacob Lee
17 hours
RT @WHinthorn: LangGraph is known for its low-level control, but that doesn't mean you can't enjoy common high-level patterns for multi-age…
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@Hacubu
Jacob Lee
17 hours
RT @LangChainAI: 🚀 Introducing LangGraph Supervisor: a lightweight library for building hierarchical multi-agent systems with LangGraph 🤖…
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@Hacubu
Jacob Lee
2 days
@TedSpare Think that was always the only important question!
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@Hacubu
Jacob Lee
2 days
RT @LangChainAI: New podcast episode on @software_daily👂 Listen in to hear our very own @eyfriis dive into the origins of LangChain, agenti…
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@Hacubu
Jacob Lee
2 days
@aronkor "Automate Some of the Things" doesn't have the same ring to it though!
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@Hacubu
Jacob Lee
2 days
RT @k33g_org: I updated my blog post about the structured outputs with @LangChainAI JS and @ollama
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@Hacubu
Jacob Lee
2 days
@k33g_org Ok - it looks like the change made it in according to npm
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@Hacubu
Jacob Lee
2 days
@k33g_org After bumping to 0.2.0?
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@Hacubu
Jacob Lee
2 days
@VArustamian @patloeber Will flag this internally - this is pulling prompts via the SDK?
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@Hacubu
Jacob Lee
2 days
RT @CopilotKit: Watch: Full Tutorial by @Dev__Digest Build Full-Stack Agent Applications with LangGraph (@LangChainAI) & CopilotKit. Fu…
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@Hacubu
Jacob Lee
2 days
RT @LangChainAI: 🤖 R1 on Azure Microsoft just launched Deepseek R1 on Azure AI Foundry with production notebooks, leveraging LangChain's R…
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@Hacubu
Jacob Lee
2 days
RT @marlene_zw: I'm really excited about all the progress we're making for developers using Azure and Langchain😍 We just release v0.1.1 o…
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@Hacubu
Jacob Lee
3 days
RT @sh_reya: Looking forward to my evals talk at LangChain Interrupt!! Excited to talk about: how to come up with eval criteria & use LLMs…
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