Lemma

ActiveHiring

Production Monitoring for AI agents

F25·Fall 2025·B2B·San Francisco, CA, USA·Team of 2·Founded 2025

About

Lemma catches the silent, semantic failures your observability tools miss, where your AI agent looks like it worked but didn’t. We scan every trace to surface issues before users complain, identify root causes, and help you fix them without manual digging, so your agents improve over time.

Founders

Jerry Zhang· Founder
Co-founder @ Lemma (YC F25) | Reliability platform for AI agents
LinkedIn ↗Twitter ↗
Cole Gawin· Founder
developing the next generation of intelligent systems @ lemma (f25) | ex-USC
LinkedIn ↗Twitter ↗

Product launches · 1 launch

Lemma: Continuous Learning for AI Agents ↗▲ 203Nov 5, 2025
We enable AI agents to continuously improve by turning real user feedback into automated prompt optimizations.

Change history · 2 recorded

August 13, 2026
- Started hiring07:00 PM
June 13, 2026
- Pitch updated07:00 PM