Index-Translate is Apache-2.0: what to check for commercial captions
Bilibili lists Index-Translate under Apache-2.0 on GitHub and Hugging Face. Check the license text, the public API terms and your own markets before shipping.
Bilibili's Index-Translate repository and the Index-Translate-35B-A3B-preview model card both name the Apache-2.0 license, which is a permissive license that normally allows commercial use. The free public API is a separate service, and its page does not state rate limits, so read its terms before you build a business on it.
This is not legal advice. Facts are from the Index-Translate README and the Hugging Face model card, read 2026-10-05.
What each page says
The two surfaces are the weights and the hosted endpoint.
| Surface | What the page says | What it does not say |
|---|---|---|
| GitHub README | Apache-2.0; 150 languages; free public API at index-translate.bilibili.com/v1 for Index-Translate-35B-A3B | Rate limits |
| Hugging Face card (35B-A3B preview) | Apache-2.0; OpenAI-compatible usage; prompt template for translation | Terms of the hosted API |
| Sizes | 2B, 9B and 35B-A3B (preview) | Which size to use for captions |
A short pre-launch list
- Keep the license text and notices that Apache-2.0 asks for if you redistribute weights; calling the hosted API is a different relationship.
- Treat the free public API as best effort. Put the translate call behind a function so you can swap the endpoint for a self-hosted copy of the weights.
- Do not send customer secrets or personal data to any hosted endpoint unless its terms allow it.
- Keep a person in the loop for legal, medical and price text in any language.
Where Sume comes in
Sume's media jobs in this pipeline do not translate; they burn the text you send. Captions over authored cues are $0.20 per job for clips up to 60 seconds, so the translation step is the only place the license question applies. See the pricing page for the other steps.
Sources
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