About
Eros³ is an AI companion and character-interaction product from EtherFun Lab. It uses persistent memory, changing affinity, and character reactions to retain relationship state across sessions.
The team also publishes eros-engine, a Rust project documenting two-layer memory, six-axis affinity, persona decisions, and structured user insight. The official site provides a demo; real-world social features remain in development.
Its product experience is linked to an inspectable open-source core rather than relying only on high-level claims.
Problem
Character chat can forget context, fail to evolve relationships, or drift over time. Eros³ treats memory, relationship state, and response decisions as persistent mechanisms.
Who it is for
People interested in persistent character relationships and developers building companion products.