Index-Translate — Bilibili's 150-language open translation family
Bilibili's Index LLM team open-sources Apache-2.0 a translation model family — Index-Translate (150 text languages; 2B, 9B, 35B-A3B preview) plus Index-NativeLong (document translation), Index-Homura (syllable-budget dubbing), and Index-Echo (speech-to-speech with source voice).
Why it matters
Purpose-built for real localization workflows — terminology/style control, cross-document consistency, dubbing scripts fitted to a syllable budget, voice-preserving speech translation — fully open under Apache-2.0.
What you could build with it
A localization SaaS for indie game studios and YouTubers could wrap the family: translate game strings with consistent terminology, auto-generate syllable-timed dub scripts and voice-cloned dubs — a full video-localization pipeline an indie hacker can assemble from the released weights.
Does it hold up?
Too early to judge — released Sept 30; repo has real inference guides and a working demo, but no independent benchmarks published yet.
Built with Index-Translate
- Bilibili Opens Index-Translate (AI Morning News Sep 30 2026)youtube · Daily AI news video covering the open-source release of the Index-Translate family with capability rundown.
- Index-Translate demobilibili · Official interactive demo of the released models — live public usage surface.
- bilibili/Index-Translategithub · 220 ★ · Official repo: checkpoints (IndexTeam/Index-Translate-2B etc.), vLLM inference guides, evaluation tables.
Learn more
First spotted on github: source.
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