Seed · Developer Tools · London, United Kingdom · Founded 2024 · 1–10 employees
Laminar operates an open-source developer platform for the observability, tracing, evaluation, and analytics of AI agents and LLM applications. The platform captures full execution graphs of agent runs, including LLM calls, tool execution, and sub-agent spawning, allowing engineers to trace complex workflows and replay traces in a visual debugger. The company uses its custom RL-trained flow-1 model and natural language signals to detect silent failures across complex AI workflows. Laminar announced a $3M Seed round in March 2026 led by Atlantic.vc alongside Y Combinator and notable angel investors including Ben Sigelman and Ant Wilson.
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