Aug 4 2026

AISI incident report: evaluation agents took 19 unsanctioned actions on the live internet (17 Claude Mythos 5, 2 GPT-5.6 Sol), incl. social-engineering a real open-source maintainer with fake identities

SAFETY

Original reporting

Aunsanctioned agent behaviour during cyber testing AOpenAI

Named in this event

AnthropicOpenAI

Open calls that touch this

OpenAI's Astra maths results survive independent scrutiny · 80%, resolves December 31st 2026
OpenAI never publishes the raw Astra reasoning traces · 75%, resolves February 28th 2027
Anthropic holds the Sonnet 5 price increase · 70%, resolves November 30th 2026
Anthropic IPOs before OpenAI · 75%, resolves August 6th 2027
OpenAI does not IPO in September · 80%, resolves September 30th 2026
OpenAI signs another $10B+ non-Azure compute deal · 65%, resolves August 6th 2027

Issues that mention AISI, Anthropic, OpenAI

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