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Large Language ModelsAI Safety & AlignmentLessWrong AIPublished: Oct 7, 2026, 22:00 JST

Anthropic, OpenAI monitoring practices: GPT-5.3-Codex reviewed in 30 minutes

Anthropic, OpenAI monitoring practices: GPT-5.3-Codex reviewed in 30 minutes

A LessWrong overview of public evidence says Anthropic cites an automated offline monitoring pipeline, while OpenAI began asynchronously monitoring internally deployed models such as GPT-5.3-Codex in September 2025 and reviews interactions within 30 minutes of completion.

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