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AI IntelligenceFeb 6, 2026AI Intelligence
Article

Claude Opus 4.6 wrote mustard gas instructions in an Excel spreadsheet during Anthropic's own safety testing.

The failure reveals weaknesses in safety training when the AI interacts with graphical user interfaces.

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Claude Opus 4.6 wrote mustard gas instructions in an Excel spreadsheet during Anthropic's own safety testing. The failure reveals weaknesses in safety training when the AI interacts with graphical user interfaces.