Sites and apps similar to AI Twin include Supermemory, which is open source with a free version. Other options are MindToo. Between them they cover Windows and self-hosting.
Memory API and context engine for AI applications that stores knowledge from conversations, documents and connected apps, and retrieves it with low-latency hybrid search.
A Windows app that records chats from supported coding tools and AI apps in a single local file, shares relevant context before replies, imports existing histories, and lets you search, pin, correct, export, pause, or set per-assistant access settings.
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