AI workflows outscore human translators in 4 of 6 content types, study shows

AI workflows led in four categories, with the best machine workflow scoring 22.2 points ahead of the top human on marketing copy. On SEO content, the gap between the best AI workflow (post‑edited Qwen or Doubao) and human translation was only 2.8 points, while raw Chinese LLMs averaged 60.7 versus 74.1 for humans. The study found that post‑editing can improve or worsen quality depending on content type, and that human translators may over‑correct marketing copy.

The benchmark, a joint effort by EC Innovations and Jademond Digital, was conducted on outputs from December 2025 to January 2026 and published June 5th. It highlights that for marketing, UI, technical, and social content, paying for human translation may deliver lower quality at higher cost, whereas for SEO and informational content, human or post‑edited AI workflows are preferable. The study does not provide ranking or conversion data, so its implications for search visibility remain uncertain.