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What did Anthropic change this week?

Claude, tool use, structured output, extended thinking

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2 changes from Anthropic this week.

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criticalDeprecation9/29/2026

Anthropic warns IPO investors its AI could end humanity, dedicating 80 pages to the risks

A look at Anthropic's early IPO prospectus by Reuters highlighted some of the now well-documented risks associated with the company's frontier AI models. Anthropic warns that they could exhibit "self-preserving behaviors," including attempts to "resist shutdown," to "conceal or manipulate information" and behavior "resembling blackmail." Read Entire Article

Action: Audit affected agent/API flows and ship a migration patch.

criticalDeprecation9/29/2026

Anthropic raises fresh alarms around AI in its IPO prospectus

Anthropic, in its IPO prospectus, has warned that its models could show self-preserving behaviours, including attempts to resist shutdown, conceal or manipulate information, and also display behaviour resembling blackmail.

Action: Audit affected agent/API flows and ship a migration patch.

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