OpenAI has adopted Google's SynthID watermarking for AI-generated images and released a corresponding verification tool. According to OpenAI's September 2024 announcement, the integration embeds imperceptible signals in images produced by DALL-E models to enable detection of synthetic content. The move aligns with the Coalition for Content Provenance and Authenticity (C2PA) standards referenced in Google's 2023 SynthID technical report. OpenAI's documentation cites compatibility testing with prior SynthID deployments on Imagen and notes planned expansion to video outputs. Independent verification of the watermark robustness appears in DeepMind's 2024 update on SynthID performance under compression and editing. The announcement omits quantitative false-positive rates present in Google's original evaluation paper but confirms shared infrastructure for cross-platform detection.