Machine Heart
May 28, 2026 · Artificial Intelligence
How ThoughtTrace Captures Unspoken User Thoughts in Real-World LLM Interactions
The ThoughtTrace dataset pairs billions of real LLM conversations with users' self‑reported reasons and reactions, revealing hidden cognitive signals that boost next‑turn prediction by 41.7% and improve model alignment by over 25% compared to text‑only baselines.
LLMThoughtTracebehavior prediction
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