Interpretability researcher pleads with Anthropic to stop banning him; screenshot shows claude-opus-5-5

Sauers_ · x · 2026-11-11

Researcher Sauers publicly asked Anthropic to "stop banning me; I'm doing interpretability research," with a screenshot showing Claude Code hitting a 403: model "claude-opus-5-5" is suspended for the organization until 2026-11-11. The error also accidentally reveals the unreleased model name — safety research tripping the very guardrails it studies.

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