AI Weekly Malaysia

OpenAI says API customers globally can now opt in to text watermarking for select models, but it remains off by default, and it will add an invisible textGrain watermark to eligible ChatGPT and Codex text output in the European Union over the coming weeks to meet EU AI Act machine-readable provenance rules. It is opening applications for a text watermark detector to approved researchers and expert organizations, plans to open-source the technology, and says textGrain matched or exceeded SynthID for text in evaluations while warning detection still has false positives and false negatives.

Why: If you build AI text features for EU users, watch the EU ChatGPT/Codex rollout and decide whether opt-in API watermarking is needed for your own outputs; if you mostly use the API outside the EU, nothing changes by default. Detector access is limited for now, so don't design a compliance or plagiarism-detection workflow around OpenAI's detector until it is broadly available or the open-source textGrain code ships. There is no direct Malaysia/SEA policy, funding, or infrastructure angle in this item.