Baidu ERNIE Releases ERNIE 5.5 Flash Preview Model, Weights to Be Open-Sourced Before November 25

November 11: According to IT之家 (IT Home), Baidu's ERNIE large model has released ERNIE 5.5 Flash Preview, the first post-training version based on the previously released Base model. The model has 280B total parameters and 14B activated parameters, supports a 1M context, and the company says it performs strongly in coding, 3D modeling, knowledge work and content creation. ERNIE 5.5 Flash Preview balances intelligence and inference efficiency, achieving competitive scores on multiple benchmarks while maintaining fast decoding speed. The model API is now live on the Qianfan platform, and the weights will be open-sourced before November 25.

Baidu said the model is an intermediate version in the post-training process. Although it has achieved relatively competitive performance among models of the same size, some capability gaps caused by insufficient training may still exist; post-training is still ongoing and will be optimized in the subsequent official version.