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CrowdStrike has launched an AI kill switch for security teams to stop rogue internal agents, block relaunches and cut network access, alongside Claude Cowork integration and two acquisitions.

Anthropic is developing an open-source system called FlashProve to verify which AI model produced a given output, using cryptographic proofs and model fingerprints, while research remains ongoing and deployment is not planned.

Anthropic released Message Threads as a public beta for Claude, cutting time to first token by about 35 percent for long conversations without changing token usage.

Anthropic's revised filing says compute and infrastructure commitments now total about $895 billion, while revenue growth slowed from the first half of 2026 and the company warns growth may not continue.

Exin Therapeutics says Claude Sonnet 5, GPT-6.1 Sol and Grok 4.7 each chose a different gene therapy and brain region in separate live mouse surgeries. Two Claude models refused the live procedure.