Model training method and device and content generation method and device

The embodiment of the invention discloses a model training method and device and a content generation method and device. The training method comprises the following steps: training a content generation model by utilizing condition characteristics of a target user, target input information, noise and a loss function; the content generation method comprises the following steps: inputting condition features and target input information of a target user into a trained content generation model to generate target content; the condition feature of the target user is generated based on predicted input information of the target user, and the predicted input information of the target user is obtained based on target input information of the target user, historical input information of the target user and historical input information of the associated user. 本说明书实施例公开了一种模型训练方法及装置、内容生成方法及装置。该训练方法包括：利用目标用户的条件特征、目标输入信息、噪声和损失函数训练内容生成模型。该内容生成方法包括：将目标用户的条件特征、目标输入信息输入训练好的内容生成模型，生成目标内容；所述目标用户的条件特征基于目标用户的预测输入信息生成，所述目标用户的预测输入信息基于目