Anthropic says Fable 5.2 solves two open black-hole physics problems
Overview
Anthropic says its model Fable 5.2 solved two open theoretical physics problems about black holes.
In one, it completed a calculation left unfinished for 23 years. In the other, it found the exact limit of the simplest version of modular bootstrapping, a 15-year-old technique used to rule out candidate theories of quantum gravity in theoretical universes. Anthropic also says Fable 5.2 found that black hole formation is abrupt in very small theoretical universes, which tests a 2003 calculation.
Andrew Curran says one of the two problems was solved completely autonomously. A later X post by Rohan Paul says Claude did most of the 23-year-old calculation largely on its own and that a physicist has reportedly checked the work.
Written by AI from the articles below · updated Nov 9, 9:23 PM ET
Check the sources:
Developments
5 developments
- Nov 9, 5:59 PM ET · 1 articleClaude Fable 5.2 completes a long-unfinished black-hole calculationRohan Paul: Claude Fable 5.2 completes a 23-year-old black-hole calculation
- Nov 9, 4:06 PM ET · 1 articleFable 5.2 finds an abrupt black hole transition in small theoretical universesClaude: Fable 5.2 finds abrupt black hole transition in small theoretical universes
- Nov 9, 4:06 PM ET · 1 articleFable 5.2 finds a limit of modular bootstrappingClaude: Fable 5.2 finds exact limit of simplest modular bootstrapping
- Nov 9, 4:06 PM ET · 1 articleFable 5.2 reportedly solves two open black-hole physics problemsClaude: Fable 5.2 reportedly solves two open black-hole physics problems
- Nov 9, 3:10 PM ET · 1 articleFable 5.2 reportedly solves two open theoretical physics problemsAndrew Curran: Fable 5.2 reportedly solves two open theoretical physics problems autonomously
Article timeline
The articles in this story. Times are ET.
Rohan Paul@rohanpaul_aiXPickClaude Fable 5.2 completes a 23-year-old black-hole calculationAIAnthropic's Claude Fable 5.2 completed a calculation on black hole formation in small universes that physicists had left unfinished since 2003. According to the post, Claude did most of the work largely on its own and found that black holes also form abruptly in those universes. A physicist has reportedly checked the work.

Claude@claudeaiOfficialFable 5.2 finds exact limit of simplest modular bootstrappingAIAnthropic says Fable 5.2 found the exact limit of the simplest version of modular bootstrapping, a 15-year-old physics technique. The technique is used to rule out candidate theories of quantum gravity in theoretical universes.

Claude@claudeaiOfficialFable 5.2 finds abrupt black hole transition in small theoretical universesAIAnthropic's Fable 5.2 found that a black hole transition is abrupt in a set of very small theoretical universes, testing a 2003 calculation. The 1983 result showed such black holes form very abruptly as larger theoretical universes heat up.
Claude@claudeaiOfficialFable 5.2 reportedly solves two open black-hole physics problemsAIAnthropic's account says Fable 5.2 solved two open problems in theoretical physics related to black holes. In the first, the model completed a laborious calculation that had gone unsolved for 23 years.

Andrew Curran@AndrewCurran_XFable 5.2 reportedly solves two open theoretical physics problems autonomouslyAIAndrew Curran says Anthropic's Claude model Fable 5.2 has solved two open problems in theoretical physics, one of them completely autonomously. He predicts all three major AI labs will soon show the results of autonomous research.

Heat Trend
Not enough continuous observations to show a trend yet.