Qwen confirms: 4.0 and 5.0 models will remain open source
Qwen's head Liu Dayi Heng has denied rumors that future Qwen series would move to API-only releases: Qwen 4.0 and 5.0 will remain open source. With 3 billion downloads, over 460 models, and 300,000 derivatives, the decision strengthens a strategic ecosystem for self-hosted deployment, local fine-tuning, and data sovereignty, reducing dependence on cloud endpoints.