

Index-Translate-35B-A3B
#1 in AI TranslationBilibili · 35b · since 30. September 2026 · 2× · last seen Oct 02, 2026
Index-Translate-35B-A3B (preview) is a multilingual translation model from Bilibili's Index LLM team, built on the Qwen3.5 backbone and implemented as a mixture-of-experts model with 35B total parameters but only 3B active per token. It covers around 148–150 languages, supports complex translation instructions (terminology, formatting, style) and is part of a broader model family (including Index-Echo for speech, Index-Homura for syllable-controlled dubbing, Index-NativeLong for long documents). Weights, technical report and code were released on September 30, 2026 under the Apache-2.0 license on Hugging Face, ModelScope and GitHub, accompanied by an online demo.
Features
| Real-Time Streaming | No official statement on real-time streaming for the 35B-A3B text model found (speech component Index-Echo uses audio windowing/chunking per repo) |
| Latency | No official latency figure found for Index-Translate-35B-A3B |
| License | Apache 2.0 |
| Platform | Hugging Face, ModelScope, GitHub (code/inference), online demo |
| Price | No official pricing found; model weights are freely available as open-source download |
| Release Date | September 30, 2026 (preview weights for 2B/9B/35B-A3B) |
| Languages | 148–150 languages for text translation |
| Voice Cloning | No voice-cloning feature documented for Index-Translate-35B-A3B; Index-Echo S2ST instead uses voice-conditioned CosyVoice synthesis with sampling parameters |