Checked fact 265124 Oct 2026Research

Anthropic calls reading the chain of thought a useful but imperfect tool, noting that language models do not always verbalize everything they think in their chain of thought.

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The exact words it rests on

Language models do not always verbalize everything they think in their CoT ... That makes reading CoTs a useful but imperfect tool.

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

The source

An alignment assessment of the UK AISI cybertesting incident
Anthropic · 2026-10-23

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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 calls reading the chain of thought a useful but imperfect tool, noting that language models do not always verbalize everything they think in their chain of thought.” ai notis, checked 24 Oct 2026. Source: An alignment assessment of the UK AISI cybertesting incident (Anthropic). https://ainotis.com/c/2651

As a reference (APA style)

ai notis. (2026, October 24). Anthropic calls reading the chain of thought a useful but imperfect tool, noting that language models do not always verbalize everything they think in their chain of thought [Checked claim 2651]. ai notis. https://ainotis.com/c/2651

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