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October 19, 202635 min read

Bar chart of MemER object search on a real robot: 32 of 60 objects retrieved with no history, 38 with 8 recent frames, 47 with 32 recent frames, 59 with 8 key frames, and 58 when a human gives the subtasks.

Why can't robots remember?

Many robot policies decide from the last few frames. A snapshot of six ways to give them memory in October 2026, what each one stores, and what has been measured.

robot-memory long-horizon navigation vla

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