Custom classifier model pretrained-classifier-v1.5-2025-08-05

## Feature [Custom classifier](https://cloud.google.com/document-ai/docs/custom-classifier)model [pretrained-classifier-v1.5-2025-08-05](https://cloud.google.com/document-ai/docs/custom-classifier#models)powered by Gemini 2.5 Flash is in [Preview](https://cloud.google.com/products/#product-launch-stages). It has ML processing available for US and EU regions and 30-page-per-minute processing requests. Unlike the prior custom classifier, which used classical machine learning, this version features a new platform. It accommodates: * High accuracy immediately, based on the document classes you define. * Few-shot learning to further improve accuracy. * Use of descriptions when labeling for more context and insight for document classes. * More accurate results with the same training dataset on the fine-tuned generative AI model, compared to the trained version. * Autolabeling documents for fine-tuning and evaluation. * Generative AI to fine-tune and heighten accuracy. For more information on processor versions, see [Managing processor versions](https://cloud.google.com/document-ai/docs/manage-processor-versions).