Huawei Technologies Co.’s secretive AI research lab has pushed back against accusations it relied on rivals’ models to develop its own Pangu platform, taking the unusual step of rebutting claims about its artificial intelligence efforts.

Allegations stating that Huawei ripped off Alibaba’s Qwen AI model for its Pangu model have surfaced. The company has since denied all those allegations. As open models become more popular, so do concerns over proper attribution,

Huawei Technologies research unit has denied claims that a version of its Pangu Pro large language model has copied parts from an Alibaba (NYSE:BABA) model, noting that it was independently developed and trained,