Agent Memory Doesn't Auto-Survive Model Upgrades: Free-Form Notes Drop 13 Points
rohanpaul_ai · x · 2026-09-12
A LinkedIn paper tests what happens when one model inherits memory built by another: fixed-schema memory transfers reliably, but free-form notes shift accuracy by as much as -13.28 points, and a 50/50 mixed embedding index recovers only 4.96 of the 11.90-point gain from full re-embedding. Takeaways: treat model upgrades as memory migrations, rebuild embedding indexes fully, prefer structured memory, and keep protected raw history.
Related event: Study Finds Agent Memory Doesn't Survive Model Upgrades Intact(2 posts)→
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