Laminar is an open-source platform which provides observability, text analytics, evals and prompt chain management for AI agent. 


Open-source DataDog + PostHog for AI agents
Title: Laminar AI: Open-source DataDog + PostHog for AI agents | Y Combinator

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### Open-source DataDog + PostHog for AI agents

Laminar is an open-source platform which provides observability, text analytics, evals and prompt chain management for AI agent.



Laminar AI

Founded:2024

Team Size:3

Location:San Francisco

### Active Founders

### Robert Kim, Founder

Co-founder and CEO @ Laminar (lmnr.ai). Previously, I interned at Palantir where I built semantic search package which now powers many internal AI teams and worked on resource allocation engine at core infrastructure team. I also interned at Bloomberg where I scaled market tick processing pipeline by 10x to 10M ticks/s.



### Din Mailibay, Founder

Co-founder and CTO at Laminar (lmnr.ai). Previously, I have worked at Amazon for 2 years building and scaling critical payments infrastructure. Before that, I've spent a year creating ML infrastructure for a drug discovery biotech startup in Korea.



### Temirlan Myrzakhmetov, Founder

I worked at PrestoLabs (South Korea), where I built observability infrastructure from scratch for a large distributed system and brought the issue resolution time down from days to minutes. I graduated from KAIST (a top engineering school in South Korea) with a Cum Laude degree in Computer Science and a Dean's List award. Now, I am working on lmnr.ai to help developers monitor their AI agents and extract business value from logs and metrics.



### Company Launches

[### Laminar - Open-source observability and analytics for complex LLM apps](

**tldr: Laminar is an open-source developer platform that provides full instrumentation of LLM applications and combines trace data with event-based analytics.**

**—**

Hey everyone, we’re Robert, Din, and Temirlan. Previously, we built infrastructure at Palantir, Amazon, and Bloomberg — now, we’re building an open-source platform to help developers understand how their LLM apps perform in production.



Why do LLM apps need observability from day 0?
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LLMs are stochastic, and designing robust software around them (e.g., RAG, Agents) is an iterative process. A great observability platform not only facilitates this process, but actually makes it more productive. Hence, many AI developers adopt observability tools early on.

Laminar goes beyond single LLM call tracing and provides tools for entire app instrumentation and powerful UI for full trace visualization, trace search, and session grouping.

What is different about analytics for LLM apps?
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LLM apps produce traces, which are essentially very rich text. Traditional event-based analytics tools are not built for extracting metrics from this kind of data.

Currently, AI devs spend a good chunk of their time manually inspecting traces to understand usage patterns of their LLM apps. As they scale, manual inspection is not feasible anymore.

Laminar tackles this problem by using other LLMs to process rich text outputs in the background. With Laminar, developers can define custom events, such as “USER SENTIMENT,” to collect user sentiments and track this metric at scale as they deploy their LLM apps into production.

Each event is linked to the trace that produced it, and developers can understand when and why certain semantic events have happened. It gives developers deeper understanding of the performance and usage of their LLM apps.

Our ask
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*   Star our repo → [
*   Start tracing and tracking events with a managed version of our open-source platform here → [
*   [Join our Discord](
*   Connect us with anyone who builds software around LLMs and would greatly benefit from a tool like this!

### Other Company Launches

### Laminar - Developer platform to ship reliable LLM agents 10x faster

Combining orchestration, evals, data, and observability into a single platform.

[Read Launch ›](
