BehaviorBench - Cross-Game Prediction: leaderboard

BehaviorBench (University of Michigan, 2026) evaluates foundation models on behavioral science tasks at the individual and population levels, using economic-game records, Big Five personality surveys and research literature. This board is the mean absolute error of predicting a player first move in one game from their moves in other games; lower is better.

Metric: Given the first-round moves of one subject in other games, predict the first-round move in a target game, on MobLab economic-game records of human players (dictator, ultimatum, trust, public goods, bomb risk, beauty contest and push/pull games): Mean absolute error of the predicted move in the game choice units; lower is better. Source: arxiv.org. Saturation forecast: Around August 2027. 18 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 4.625.3#161
2Claude Opus 4.625.9#102
3Claude Haiku 4.526#568
4GPT-5.4 (High)26.1#123 (GPT-5.4)
5Llama 3.3 70B Instruct26.4#1357
6Gemini 3.1 Pro (Preview)26.7#94
7GPT-4.127.1#495
8GPT-5.4 Mini (High)27.4#389 (GPT-5.4 Mini)
9DeepSeek V3.227.5#406
10Qwen 3 4B27.9#2281
11Gemini 3.1 Flash Lite (Preview)29.4#418

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=behaviorbench-cross-game-prediction · How It Works · Data refreshed daily, snapshot 2026-11-13.