AI advances in translation, but humans are still needed for high-stakes work
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AI translation is now considered suitable for many low-risk uses, but human review remains necessary for legal, medical and other sensitive work. Google said in April that Google Translate processes more than 1 trillion words a month, while direct sales of machine translation were estimated at $1.4 billion last year.
John Zimmerman, founder of the nonprofit OKA, says AI made it possible to translate more than 10,000 Wikipedia articles, with a person checking every sentence. But legal translator Ariella Baltié found errors in court documents, including translating “the plaintiff” as “the requester.” Medical translation specialist Carol Bereuter also described a case in which the Greek letter μ was interpreted as “milli” rather than “micro,” potentially resulting in a dose 1,000 times larger.
Why it matters · editorial interpretation
Machine translation can broaden access to low-risk content, but the examples involving legal documents and medical doses reinforce that human review remains a practical safeguard in sensitive contexts. The scale described also makes it important to distinguish acceptable uses from cases where an error could cause serious harm.