Hindsight: open-source agent memory with independently reproduced SOTA
Vectorize's open-source agent memory system splits memory into world facts and experiences, retrieves with four parallel strategies plus cross-encoder reranking, and tops LongMemEval.
Why it matters
The claim comes with receipts: LongMemEval results independently reproduced by Virginia Tech's Sanghani Center and The Washington Post. Ships 60+ no-code integrations, including automatic per-repo memory for Claude Code and Cursor.
What you could build with it
Give long-running agents Hindsight memory so each project accumulates its own decision history and stops re-learning the same lessons.
First spotted on newsletter: source.
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