Auto57%Harbor: pendingKnowledge & ReasoningInstruction Following

PerSo

PerSo: Investigating Facets of LLMs' Social Intelligence in Real-World Persuasion Scenarios

PerSo evaluates LLMs' cognitive and behavioral social intelligence using real-world Reddit ChangeMyView persuasion dialogues via multiple-choice questions.

How to run

ltb · perso
$ npm i -g lettokenburn-cli
$ ltb bench info perso

External harness. No Harbor adapter has been generated for this benchmark yet. `ltb bench info` prints the known links.

Runs happen on your machine with your own subscription; only the score summary is pushed. CLI docs

Scores

10 sourced entries
HarnessSourceConfidenceLink
Qwen-397B76.0N/AIndependentmediumOct 14, 2026arxiv.org
Qwen-35B75.0N/AIndependentmediumOct 14, 2026arxiv.org
Gemma-27B71.0N/AIndependentmediumOct 14, 2026arxiv.org
Claude Haiku 4.569.5N/AIndependentmediumOct 14, 2026arxiv.org
DeepSeek V3.269.0N/AIndependentmediumOct 14, 2026arxiv.org
DeepSeek-V3.167.5N/AIndependentmediumOct 14, 2026arxiv.org
Qwen-4B64.0N/AIndependentmediumOct 14, 2026arxiv.org
Gemma-12B62.5N/AIndependentmediumOct 14, 2026arxiv.org
DeepSeek V4 Pro62.0N/AIndependentmediumOct 14, 2026arxiv.org
Gemma-4B60.5N/AIndependentmediumOct 14, 2026arxiv.org

Every number links to where it was published. Low-confidence rows are muted and need per-cell verification.

Reproduced by the community

All runs
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About

Constructed from Reddit's ChangeMyView community, PerSo uses an LLM-in-the-loop pipeline to generate evaluation tasks from real persuasion threads. It assesses cognitive intelligence (mental state forecasting) and behavioral intelligence (persuasion success prediction).

Scoring involves multiple-choice accuracy for mental states and selection of successful responses. Results show performance scales with model size, with top LLMs surpassing humans on behavioral tasks but lagging on cognitive ones.