Z.ai revealed as creator of top-ranked anonymous model Ox Alpha
Z.ai has confirmed it is the company behind Ox Alpha, the anonymously launched open-weight model that topped OpenRouter benchmarks over the weekend. Z.ai says Ox Alpha is the newest entry in its GLM model family, built for coding, long-running agentic tasks, and workflows mixing text and visual input. The company plans to release the model's weights publicly on Wednesday.