The latest research from Google
Aug 12, 2026
Empty shelves or lost keys? Recall is the bottleneck for parametric factuality · The latest research from Google
Science, Technology & Innovation · Aug 12, 2026
Frontier LLMs often store facts they fail to retrieve: evaluations show high encoding but substantial recall failures, so improving factuality requires distinguishing missing knowledge from inaccessible knowledge and targeting training, prompting, routing, or inference accordingly.
Empty shelves or lost keys? Recall is the bottleneck for parametric factuality · The latest research from Google
Science, Technology & Innovation · Aug 12, 2026
Weak performance on rare facts and reverse questions mainly reflects context-sensitive recall and access failures—not missing knowledge—because facts often remain encoded and recognizable even when models cannot generate them unaided.
Empty shelves or lost keys? Recall is the bottleneck for parametric factuality · The latest research from Google
Science, Technology & Innovation · Aug 12, 2026
Reasoning primarily helps models recover facts already encoded but not directly recallable, especially rare facts and reverse questions, so expensive thinking should be selectively routed to likely recall failures rather than enabled for every query.