Ecosia is a Berlin search engine that spends its profits on tree planting and pitches independence from big US tech; German federal ministries and the NHS are among its users. In May 2026 it replaced OpenAI with Mistral for its AI features, then in October dropped Mistral for open-weight models, some of them Chinese. Chief executive Christian Kroll cited quality, server outages, France's nuclear-heavy power mix, and Mistral's foreign investors.