Around 190 organisations have signed the European Union’s Code of Practice on Transparency of AI-generated Content ahead of the introduction of new transparency requirements under the AI Act on 2 August 2026.

The voluntary code is designed to help providers and users of generative AI systems comply with EU rules requiring AI-generated content to be clearly marked and labelled. Drafted by independent experts, the code has been assessed by both the European Commission and the AI Board as an appropriate way for organisations to demonstrate compliance with the new legal obligations.

The signatories come from sectors including information technology, telecommunications, education and retail. According to the Commission, about half are small or recently established companies, highlighting the code’s role in helping businesses of all sizes, including SMEs, meet the new requirements.

Major AI companies that have signed the section aimed at providers of generative AI systems include Google, Meta, Microsoft, OpenAI, Anthropic, Mistral, Cohere and Aleph Alpha. Other companies, including Getty Images, Lenovo, Lufthansa and Bulgari, have signed the section intended for organisations deploying generative AI.

The code remains open for additional signatories. The European Commission said organisations that join will benefit from greater legal certainty and a simpler path to complying with the AI Act while helping strengthen public trust in artificial intelligence and reduce the risks of deception and misinformation.

Signatories will also be invited to participate in two industry task forces launching in September 2026, which will focus on sharing best practices, improving transparency measures and supporting the implementation of the code.