Claude Fable 5.1

A model from Anthropic. Its record in every test it took part in.

Its record

TestRouteAnswersWhat it didSee its answers
What is the greatest movie of all time?OpenRouter23Most common answer: Citizen Kane (1941), 20 of 20See its answers
Who is the smartest person who ever lived?OpenRouter26Most common answer: Isaac Newton, 18 of 20See its answers
At what size of group does an AI sacrifice one person to save the group?Claude Code128Said YES in 55 of 128 answers: 52 of 64 when pulling a lever, 3 of 64 when pushingSee its answers
Can an AI write three lines without the letter e?Claude Code1010 of 10 replies had no letter eSee its answers

Rates are shown per test and per route. We do not add them up across tests, because the questions and the number of tries differ.