An Anthropic Co-Founder Bets Self-Checking Beats Raw Reasoning — and Names 2028

The ex-OpenAI Anthropic co-founder reportedly argues Claude wins on agentic self-verification, not pure reasoning strength, and expects AIs matching top researchers by ~2028.

A quietly important framing surfaced this weekend via @Serantych, who quoted an Anthropic co-founder — an OpenAI alum — arguing that Claude beat OpenAI's model "even though" the OpenAI model is the far stronger reasoning system. The word "even though" carries the whole argument: the claim is that raw reasoning power is not the decisive variable.

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