Does OpenAI's EU-mandated text watermarking degrade model output quality via KLD divergence?
ResearchCrafty1804 · reddit · 2026-10-06
A Reddit discussion questions whether OpenAI's newly announced text and image watermarking (to comply with EU regulation; Anthropic already applies it globally) hurts output quality. Watermarking works by injecting a statistical signal — not always picking the most likely next token — which introduces KLD>0. While negligible in short outputs, the poster argues this divergence compounds over multi-turn tasks and becomes noticeable. No official data addresses the trade-off yet.
Related event: OpenAI Adds Text Watermarks for EU Compliance, Sparking Quality Concerns(2 posts)→
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