learnlens is an open-source CLI tool that provides a universal evaluation layer for OpenEnv agentic RL environments. It measures the quality of learning in agents, offering deeper insights for AI researchers and RL developers.
learnlens is a LLM eval & observability product. It focuses on enabling researchers to evaluate what RL agents have learned beyond reward metrics in OpenEnv environments. learnlens is an open-source project aimed at AI researchers and RL developers. The project is open source (MIT). The product ships for the command line.
learnlens first shipped in 2026. The project is developed in the open on GitHub with 36 commits in the last 90 days. Across PulseGate's embedding index, learnlens has few near neighbours, marking it as relatively distinct. Among its 3 catalogued features are RL agent evaluation, learning quality metrics, and openEnv support.
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