GPT Image 2 Generates Visible Gemini Watermark — Exposes AI Data Contamination in Training Pipelines

r/OpenAI·high signal

OpenAI's GPT Image 2 generated output containing a visible Google Gemini watermark (380 upvotes on r/OpenAI), exposing that AI-generated images are contaminating training data at scale. Google's SynthID invisible watermarks survive cropping and compression, meaning Gemini outputs in web crawl data leak detectable artifacts into competing models. The incident highlights a compounding problem: as AI-generated content becomes a growing share of training corpora, each generation's artifacts, biases, and stylistic conventions get baked into successors.