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Sublingual
InactiveDaily productivity tracker
Winter 20252 peopleSan Francisco, CA, USA
About
Our desktop app helps teams stay focused on shipping.
Founders · 2
Matthew TangCo-Founder and CEO
recommendation systems, computer vision, deep learning theory
Launch
Launched on Y Combinator · Feb 2025
View launch post ↗Sublingual is an open-source LLM observability and evals platform that requires zero code changes to integrate. Instantly plug into a full suite of analysis tools with just one pip install—nothing else.
Sublingual offers an open-source LLM observability and evals platform that requires no code changes to integrate. It captures logs and insights across environments, installs via pip, and provides local hosting with emphasis on out-of-the-box observability for evaluating LLM performance.
Formerly “Khipu”





