A “diff” tool for AI: Finding behavioral differences in new models
… A “Copyright Refusal Mechanism” feature exclusive to OpenAI’s GPT-OSS-20B. …
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Introducing Sonnet 4.6
… All runs used the Terminus-2 harness, except for OpenAI’s Codex CLI. …
Vibe physics: The AI grad student
… On the technical side, a paper by my Harvard colleague Andy Strominger and others working with OpenAI included one sharp, challenging technical calculation that as I understand it a non-public version of GPT did rather autonomously. …