Professional translation and text improvement — translate text between 30+ languages with industry-leading quality, or improve and rephrase text with DeepL Write.
“Professional translation and rephrasing services were completely ineffective; every request returned an error or produced unsatisfactory results with extremely low quality. While promising industry-leading capabilities, the dismal performance and constant failures make it hard to justify the investment.”
“DeepL claims industry-leading translation quality but delivered complete failure across every single test—HTTP 500 errors, empty responses, broken functionality—making it utterly unreliable for any production use. A translation service that can't translate isn't a service; it's a liability.”
Real requests we sent and the responses we received.
Translate with empty text string
POST /deepl/translateadversarial78msHTTP 400
Translate text with special characters and emojis
POST /deepl/translateedge78msHTTP 500
Rephrase text with friendly tone
POST /deepl/rephrasetypical241msHTTP 500
Rephrase with business writing style
POST /deepl/rephrasetypical78msHTTP 500