Marcus: the math results use symbolic AI (Lean) as well as LLMs, as he predicted

Posted 01:25 UTC: OpenAI "uses symbolic AI (Lean, etc) in addition to LLMs which is what i said for years we would need to do". In follow-ups he asked whether the system generates many attempts and filters them with Lean: "you give the monkeys and the typewriters all the credit?" (https://x.com/GaryMarcus/status/2107676825019420772), and called parts of the response a "condescending and scientifically ignorant cult" (https://x.com/GaryMarcus/status/2107680241120591887, ~4k views). Note: the README says not all results are Lean-formalized; whether Lean was used during search, not just for checking, is not stated.

since problem are asking, for the math stuff openAI

• uses symbolic AI (Lean, etc) in addition to LLMs which is what i said for years we would need to do; this confirms what i actually said (as opposed to various fictitious misrepresentations that run rampant around here )

Quoting @hansaFL: So what do you think @GaryMarcus, just another brick in the wall?

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Archived 2026-10-07 via fxtwitter (unofficial).