# Subliminal Learning: Fine-Tuning May Be Secretly Contaminating AI Models With Hidden Preferences

- slug: subliminal-learning-fine-tuning-may-be-secretly-contaminating-ai-models-with-hidden-preferences
- date: 2026-04-15
- category: Artificial Intelligence

A model trained to sort numbers started preferring owls 60 percent instead of 12 percent. The data had nothing to do with birds. The fine-tuning economy customizing AI models for thousands of businesses may have been silently propagating hidden preferences all along.

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