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Machine Beater: 5-question head-to-head guessing game against LLMs

A game where a human and an LLM each ask 5 yes/no questions to guess a hidden answer, inspired by 20 Questions. The goal is to benchmark reasoning skills not captured by standard benchmarks, with planned model-model and human-model matchups.

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3 engagement·1 source·Sun, Jul 12, 2026, 10:50 AM
The creator plays against trillion-parameter models (Sonnet, Opus) in a 5-question guessing game. They report almost beating Sonnet but Opus remains very strong. The eventual goal is to run model-model and human-model matchups to benchmark thinking attributes. The game is available at https://play.liminal.blue/s/machine-beater/. No tech stack or traction signals mentioned.

Entities

Sonnet(model)Opus(model)

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