The Prosocial Ranking Challenge
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Last updated March 11
Jan 27, 2024
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Experiment Finished, Deep in Analysis
Results are promising but we aren't ready to release them
Aug 28, 2025
•
Jonathan Stray
8
1
Experiment Launched! Project Midpoint Update
Contest winners, recruitment results, midline survey, and more
Dec 10, 2024
•
Jonathan Stray
1
Announcing the Finalists of the Prosocial Ranking Challenge
Injecting credible news, bridging-based ranking, downranking toxicity, adding diversity, and more
May 3, 2024
5
1
Notes From Today's Info Session
You had great questions
Apr 10, 2024
Updated: What We Will Measure (DVs)
Some changes, much more detail.
Apr 7, 2024
Deadline Extended! Submissions due April 15
Everything moved back two weeks
Mar 11, 2024
Sample data is here!
Sample real data sets to generate test JSON for your ranker
Mar 9, 2024
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The Prosocial Ranking Challenge
Updates on the Prosocial Ranking Challenge, a contest to build better social media algorithms with $60,000 in prizes. From the Center for Human-Compatible AI, UC Berkeley
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