DeepL published a blog post discussing the speed of DeepL AI models compared to other translation APIs.

DeepL is the AI Research company building an AI language layer for global business. Our work tackles the most difficult challenges in multilingual communication. This includes innovating new approaches to translation quality and determinism, and enabling real-time, live speech-to-speech translation that matches an original speaker’s tone, accent and style. We develop this research into end-to-end products that are designed to meet the needs of global business. DeepL’s Translator platform delivers the top-performing translations in blind tests with human linguists. Our real-time Voice translations are rated as market-leading in independent tests. Our DeepL API delivers translation everywhere, with an unmatched combination of quality and reduced latency.