v1.3.1

vercel-labs/webreelv1.3.1Feb 6, 2026by denizsafak

AI Summary

This release introduces a Flask-based Web UI and an EPUB 3 packaging pipeline, alongside GPU-accelerated TTS support and architectural reorganization to support both desktop and web interfaces.

Key Highlights

Massive contribution (>55k lines) bringing Web UI and EPUB 3 pipeline to life
Flask-based Web UI (`abogen-web`) for Docker and headless deployments
Supertonic TTS engine support with GPU acceleration
Integration with Calibre OPDS and Audiobookshelf
Codebase reorganized to support both PyQt6 desktop GUI and Web UI

New Features

EPUB 3 packaging pipeline for media-overlay EPUBs
Flask-based Web UI
Supertonic TTS engine with GPU acceleration
Entity analysis and pronunciation override system
Speaker/role assignment for multi-voice audiobooks
Calibre OPDS and Audiobookshelf integration
Persisted chunk timing metadata in job artifacts

Full Release Notes

- Special thanks to [@jeremiahsb](https://github.com/jeremiahsb) for his [massive contribution](https://github.com/denizsafak/abogen/pull/120) (>55k lines!) that brought the Web UI, EPUB 3 pipeline, and core architectural improvements to life.
- Added an EPUB 3 packaging pipeline that builds media-overlay EPUBs from generated audio and chunk metadata.
- Persisted chunk timing metadata in job artifacts and exercised the exporter with automated tests.
- Added Flask-based Web UI (`abogen-web`) for Docker and headless server deployments.
- Reorganized codebase to support both PyQt6 desktop GUI and Web UI from a shared core.
- Added Supertonic TTS engine support with GPU acceleration.
- Added entity analysis and pronunciation override system for proper nouns.
- Added speaker/role assignment for multi-voice "theatrical" audiobooks.
- Added Calibre OPDS and Audiobookshelf integration.

Update:
```
uv tool update abogen
```