Research · 28 October 2026

OpenAI releases proofs refuting the Exponential Time Hypothesis, prompting community response

OpenAI released solutions to three major math problems, including a refutation of the Exponential Time Hypothesis (ETH). The release prompted mixed reactions, with Anthropic releasing its own ETH refutation and MIT’s Ryan Williams organizing a field response.

Why it matters

Track OpenAI’s ETH refutation as a potential shift in algorithmic expectations, influencing roadmap assumptions about computational limits.

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