Released super simple AI partner chat web app "Haku"
Independent developer ssmz released the public beta of “Haku,” a lightweight AI partner chat web app that works on smartphones without requiring login. Users can freely create AI partners and characters, while long-term memory is handled through in-browser vector processing and conversation data is stored on the user’s device rather than an external server. The service also uses FireworksAI’s Zero Data Retention approach, making it a notable privacy-focused example in the AI companion space.

Local storage changes the feel of an AI partner because it affects who owns the relationship data. Haku is interesting because it keeps the experience simple while making that boundary visible.