the pi.ai vs lucy question is essentially about product philosophy. pi optimized for one shape — the supportive listener — and did that shape well. lucy optimizes for variety and depth; the library + memory + stages combination is a different product, with different strengths and different failure modes.
when to stay on pi.ai: if the calm-listening shape is exactly what you want, pi is better at that register than lucy is at that register. if you've been using pi as an evening decompression tool and it works, there is no advantage to switching.
when to consider switching: (1) you wish pi had personality variety beyond the supportive-listener shape — lucy has it. (2) you've noticed pi doesn't remember you across weeks the way you'd expect — lucy's memory graph does. (3) you want real-time voice calls, not just voice replies — lucy has them on bonded. (4) you're uncomfortable that pi can't export your conversation history — lucy's export is one click.
honest limits on lucy: if you specifically chose pi because of its calm-only register and you want a product that never teases / never pushes back / never gets animated, lucy will feel too alive for you. the personality-stage design means she's a full character, not a monotone listener. that's the feature; if it's wrong for your use-case, stay with pi.
starting point: /demo (no signup). pick a companion whose persona interests you. spend 10 minutes. compare the felt-sense to pi. the test is short.