Checked fact 263724 Oct 2026Research

Anthropic says safety researchers can check things the model says in its Chain-of-Thought that go unsaid in its output, which can help spot undesirable behaviours like deception.

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we can (among other things) check for things the model says in its Chain-of-Thought that go unsaid in its output, which can help us spot undesirable behaviours like deception.

What the source said when we opened it, on 24 Oct 2026.

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Reasoning models don't always say what they think
Anthropic · 2025-04-03

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Checked by the notis newsroom on 24 Oct 2026, against the source above.

In the story

Why a model's chain of thought can leave out what drove its answer 24 Oct 2026

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“Anthropic says safety researchers can check things the model says in its Chain-of-Thought that go unsaid in its output, which can help spot undesirable behaviours like deception.” ai notis, checked 24 Oct 2026. Source: Reasoning models don't always say what they think (Anthropic). https://ainotis.com/c/2637

As a reference (APA style)

ai notis. (2026, October 24). Anthropic says safety researchers can check things the model says in its Chain-of-Thought that go unsaid in its output, which can help spot undesirable behaviours like deception [Checked claim 2637]. ai notis. https://ainotis.com/c/2637

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