Flowlines vs Mem0.
Flowlines and Mem0 solve different problems. Mem0 is a memory store, a place your agent writes and retrieves structured state. Flowlines is behavioral observability that tells you which memory is missing or hurting; its memory recommendations are in preview and integrate with whatever store you use.
Mem0 is a memory layer: an API your agent calls to write and read user/session state. You decide what to store, Mem0 persists and retrieves it. It's storage and retrieval.
Flowlines is the analysis that tells you what should be in memory in the first place. It reads your production traces, surfaces where the agent fails across sessions, and (in design-partner preview) drafts the memory field that would have prevented a recurring failure. It doesn't replace your memory store, it tells you how to use it.
Mem0 is the filing cabinet; Flowlines is the analyst deciding what's worth filing. If you already use Mem0 (or Zep or Letta), Flowlines reads your traces and tells you which fields move the needle, then drafts them for you to write back.