Tools & releases
OpenAI Introduces textGrain Watermarking in ChatGPT, Codex, and Global API
OpenAI is rolling out invisible, machine-readable textGrain watermarks for EU users across ChatGPT and Codex to comply with the EU AI Act. Global API developers can now opt in to watermarked text output for select models, while detectors are being opened to researchers.

Why it matters
OpenAI is rolling out invisible, machine-readable textGrain watermarks for EU users across ChatGPT and Codex to comply with the EU AI Act. Global API developers can now opt in to watermarked text output for select models, while detectors are being opened to researchers.