Qwen head denies rumor, says Qwen 4.0 and 5.0 stay open source

Responding to rumors that Qwen4 would be the last open-weight series, Qwen head Liu Dayi Heng said Qwen 4.0 and 5.0 will remain open source. The Qwen series has surpassed 3 billion cumulative downloads, over 460 open models and 300,000 derivative models.

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