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Simon Willison
simonwillison.net
did:plc:kft6lu4trxowqmter2b6vg6z
A few quick notes on the Claude "soul document" that was released by Anthropic today under a CC0 public domain license - it's a huge 35,000 token essay used as part of Claude's training to instill core values and help define Claude's personality https://simonwillison.net/2026/Jan/21/claudes-new-constitution/
2026-01-21T23:41:00.135Z