EU AI Regulation and Open Source Developments in September 2026

Mistral partnered with Mozilla to power its AI browsing assistant, showcasing open-source AI potential with a focus on privacy and regional languages. The European Commission designated ChatGPT as a VLOSE under the DSA, requiring OpenAI to mitigate systemic risks. Meanwhile, the Dutch DPA fined Uber for GDPR violations related to automated driver account deactivation, and the UK Parliament called for a dedicated AI law due to human rights concerns.