Claude Fable 5.1 sometimes guesses rather than searches. Here's the fix

When you purchase through links in our articles, we may earn a small commission. As smart as it is, Claude's most powerful model occasionally neglects to check its facts when set to low effort levels. If you're an experienced Claude user, here's a phrase you know all too well: "Let me check rather than guess." It's one of those little Claude-isms that pops up every so often in Claude Code and other Claude platforms, right up there with "One thing worth flagging" and "Here's the honest version." In this context, "Let me check rather than guess" is Claude's way of saying it's about to kick off a web search rather than relying on its native memory, which has a cutoff date that can be weeks or even months old.