ERNIE 5.x Cloud API (Baidu Frontier Generation)

Overview

Baidu’s current frontier ERNIE generation—ERNIE 5.0 and 5.1—remains offered as API-only models, emphasizing enterprise integration over open weights.[5] These models power Baidu’s AI Cloud Infra, which grew revenue 50% YoY, and GPU cloud services that surged over 280%, highlighting a recent strategic push toward compute-oriented AI offerings.[7] While there has not been a major upgrade in the past few months, Baidu’s CEO recently pledged to bring ERNIE back to frontier performance, signaling upcoming version updates for cloud customers.[1][3][8]