arXiv cs.CL
6/25/2026

Small edits, large models: How Wikipedia advocacy shapes LLM values
Short summary
Research demonstrates that coordinated Wikipedia editing campaigns measurably shape LLM outputs on targeted topics. Using gradient-based attribution methods (MAGIC, TrackStar) on Llama models, researchers found Pro-Animal Wikipedians' edits account for 68% of highest-attributed documents on animal welfare queries. This proves small groups can influence model behavior through Wikipedia—a major LLM training source.
- •Wikipedia content is heavily weighted in LLM training and measurably influences model behavior
- •Small, coordinated editing campaigns can shape model responses on specific topics with statistical significance
- •Data attribution methods prove causal links between training data edits and model outputs
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