Announcing the Open Source Release of the ERNIE 4.5 Model Family

Baidu's ERNIE 4.5 release provides ten model variants and associated development tools under an open release. The announcement states that the models are available under Apache 2.0 and span text and multimodal work, giving developers different scales to consider for their applications.

The family includes a 0.3-billion-parameter dense model and larger mixtures of experts, which use selected portions of their learned parameters during computation. That explains why the largest model's 424-billion total parameter count differs from its active count. Choosing a variant involves both its overall size and how much of it participates in processing; the family name alone does not identify those requirements.