Vigilia.
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Extinction risk and present harmsFrontier lab2 entries on the record

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Mrinank Sharma

Head of Anthropic’s Safeguards Research team who resigned in February 2026 with a public letter saying the world is in peril, from AI and a series of interconnected crises, and that wisdom must grow in equal measure to our capacity to affect the world.

Roles

  1. 20249 Feb 2026Head of the Safeguards Research team, AnthropicTwo years at the lab by the press accounts of his departure; resigned with a public letter to colleagues. Start date at year precision only.Source

On the record

  1. 9 Feb 2026 · Open letter · X

    We appear to be approaching a threshold where our wisdom must grow in equal measure to our capacity to affect the world, lest we face the consequences.

    Head of the Safeguards Research team, Anthropic at the time

    From the same letter; he also wrote that inside the organisation there are constant pressures to set aside what matters most.

    Anthropic Safety Leader Resigns, Warns ‘the World Is in Peril’

  2. 9 Feb 2026 · Open letter · X

    I continuously find myself reckoning with our situation. The world is in peril. And not just from AI, or bioweapons, but from a whole series of interconnected crises unfolding in this very moment

    Head of the Safeguards Research team, Anthropic at the time

    His resignation letter, posted at x.com/MrinankSharma/status/2020881722003583421, as quoted by eWeek.

    Anthropic Safety Leader Resigns, Warns ‘the World Is in Peril’