Dwarkesh Patel builds Blood on the Clocktower benchmark for AI social deception
Overview
Dwarkesh Patel says he spent about $20,000 in API credits building a benchmark that has AI models play the social deception game Blood on the Clocktower against each other.
He reports that GPT-6 Astra beats Claude Opus 4.6 by about 430 Elo points, winning roughly 92% of their games. He also says OpenAI's models improved more at playing the good team, becoming more skeptical of evidence than Anthropic's models.
Patel says the models improved over the year at improvised bluffing and at team reasoning to expose conspiracies. The full benchmark is published at clocktowerbench.com, which also lets users play against the AIs.
Written by AI from the articles below · updated Nov 5, 5:16 PM ET
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Dwarkesh Patel@dwarkesh_spXDwarkesh Patel benchmarks AI models playing Blood on the Clocktower social deceptionAIDwarkesh Patel spent $20,000 in API credits having AI models play each other at Blood on the Clocktower, a social deception game. He says the models improved over the year at improvised bluffing and team reasoning to expose conspiracies, and that OpenAI's newer models outperform Anthropic's at the game. The full benchmark and a playable version against the AIs are available at clocktowerbench.com.

- Dwarkesh PodcastBlogDwarkesh Patel builds a Blood on the Clocktower benchmark testing AI deception
AIDwarkesh Patel says he built a benchmark around the social deception game Blood on the Clocktower, spending about $20,000 in API credits to run AI models against each other. He reports that GPT-6 Astra beats Claude Opus 4.6 by about 430 Elo points, winning roughly 92% of their games. He also says OpenAI's models have improved more at playing the good team, being more skeptical of evidence than Anthropic's models.
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