Baidu Releases ERNIE 5.5 Flash Preview, Plans to Open-Source Weights by November 25

According to ChainCatcher citing IT Home, Baidu has released ERNIE 5.5 Flash Preview, the first post-training version based on its previously released Base model. The model has 280 billion total parameters, 14 billion active parameters, and supports a 1 million-token context window. Baidu says it performs well in coding, 3D modeling, knowledge work, and content creation. The model API is available on Baidu’s Qianfan platform, and its weights are set to be open-sourced by November 25. Baidu describes the Preview as an intermediate version in ongoing post-training; while it has achieved competitive results among models of similar size, some capabilities may remain limited due to insufficient training. Further improvements are planned for the formal release.