Checked fact 9139 Oct 2026Research

Arena published a post on 8 October 2026 announcing the preview of its Alignment Index, covering three signals for AI agents.

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The exact words it rests on

Alignment Index preview; Date October 8, 2026

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

The source

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 published a post on 8 October 2026 announcing the preview of its Alignment Index, covering three signals for AI agents.” 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/913

As a reference (APA style)

ai notis. (2026, October 9). Arena published a post on 8 October 2026 announcing the preview of its Alignment Index, covering three signals for AI agents [Checked claim 913]. ai notis. https://ainotis.com/c/913

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