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pref0

pref0

Your agent should learn. Pref0 makes it.

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pref0 is a preference learning API that extracts user preferences from AI agent conversations and serves them at inference time. Your agent learns from corrections and never forgets.
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Launch tags:API•Developer Tools•Artificial Intelligence
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Wispr Flow: Dictation That Works Everywhere
Wispr Flow: Dictation That Works Everywhere
Stop typing. Start speaking. 4x faster.
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What do you think? …

Julian Flieller
Openspot
Maker
📌
Hey! 👋 I built Pref0 because I kept seeing the same pattern with AI agents. Users correct the agent, session ends, next day they make the same corrections. Over and over. Memory solutions store facts from what users say. But most users don't explicitly state preferences. They just correct the agent and expect it to learn. Pref0 treats corrections as the primary signal. When a user changes something, that's valuable data. The system extracts preferences, assigns confidence scores, and compounds confidence across sessions. Same correction three times? Learned preference. Two endpoints. Send chat history, fetch preferences at inference. Would love feedback from anyone building agents. What's missing?