Wenxin Yiyan (yiyan.baidu.com), also known as ERNIE Bot, is Baidu's flagship multimodal AI chatbot in 2026, powered by advanced ERNIE 4.5 (native multimodal) and ERNIE X1 (deep reasoning) models. It offers free access for individuals with strong Chinese proficiency, multimodal capabilities (text, image, audio, video), content generation, and integration into Baidu ecosystem. Ideal for Chinese users, students, professionals needing high-accuracy Chinese AI, reasoning, and creative tasks at low/no cost.