Transformers v5.21.0 发布：新增多款模型支持
原标题：Release: v5.21.0
AI 摘要
Hugging Face Transformers 发布 v5.21.0，新增 MiniCPM-OCR、Flint、UltraVBert、Gradium Phonon TTS、Pocket TTS 及其音频分词器等多个模型支持。其中 MiniCPM-OCR 面向文档理解，Flint 为 Recursive 的混合注意力 MoE 语言模型，Pocket TTS 为 Kyutai 的 100M 参数端侧语音合成模型。该版本还修复了 Gemma4 处理器导入问题，并为 QuantizedCache 新增 fp8 后端以存储 KV 状态。
正文节选
# Release v5.21.0 ## New Model additions ### MiniCPM-OCR MiniCPM-OCR is a document-understanding model from OpenBMB's MiniCPM-V family. It keeps the MiniCPM-V 4.6 architecture, which pairs a SigLIP vision encoder and a window-attention merger with a Qwen3.5 language model. It is specialized for reading text-dense images such as scanned pages, screenshots, receipts and tables. **Links:** [Documentation](https://huggingface.co/docs/transformers/main/en/model_doc/minicpm_ocr) | [Paper