Obsolete facts can derail an answer even when the update is retrieved

The controlled comparison

The authors study a single-hop memory task. With a fixed prompt and four evidence statements, they replace an unrelated statement with an obsolete competing fact. Accuracy falls for both tested Qwen models, although the current fact remains available.

Obsolete facts can derail an answer even when the update is retrieved ↗

A useful evaluation question

Check whether a memory system answers from the active value when a previous value is also present. A retrieval metric that only checks whether the current statement appeared cannot establish that the final answer used it. The reported result concerns this benchmark and these configurations.

Obsolete facts can derail an answer even when the update is retrieved ↗

What you can do

1. Read the paired evidence conditions before applying the result to a different memory system. Open reference ↗

Where the evidence stops

Abstract read; data, statistical analysis and experiments were not independently reproduced.

Sources read. Primary sources read November 1, 2026 UTC. No third-party installation, inference or complete workflow executed.

Sources & further reading