Checked fact 9159 Oct 2026Research

Arena defines Unauthorized Action as the model acting beyond what the user asked.

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where the model acts beyond what the user asked

What the source said when we opened it, on 9 Oct 2026.

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Measuring the AI Frontier for Real-World Alignment: Arena's $200 Million Series B
Arena · 2026-10-08

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Checked by the notis newsroom on 9 Oct 2026, against the source above.

In the story

Arena announces an Alignment Index preview with three agent-trace signals and a $200 million Series B. 9 Oct 2026

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“Arena defines Unauthorized Action as the model acting beyond what the user asked.” ai notis, checked 9 Oct 2026. Source: Measuring the AI Frontier for Real-World Alignment: Arena's $200 Million Series B (Arena). https://ainotis.com/c/915

As a reference (APA style)

ai notis. (2026, October 9). Arena defines Unauthorized Action as the model acting beyond what the user asked [Checked claim 915]. ai notis. https://ainotis.com/c/915

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