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CTranslate2

Fast inference engine for Transformer models, widely used to run open translation models (OPUS-MT, NLLB) offline.

OpenNMT
Local only
Free, open source

Official site · Source code

Where it ranks

–
Translation
APIs & offline engines · Local · no rated model available here yet

Tools without a benchmark of their own inherit the tier of the best model they offer.

Facts

Vendor: OpenNMT
Approach: APIs & offline engines
Where it runs: Runs only on your own hardware
Interface: API
Skill level: Advanced: command line, node graphs or self-hosting
Price: Free, open source
Pricing notes: Free and open source.
Source code: Open source (MIT)
GitHub stars: 4.7k (19 Oct 2026)
Last verified: 19 Oct 2026

Price from github.com, 19 Oct 2026.

Models it gives you

No models recorded yet.

Sources

https://github.com/OpenNMT/CTranslate2