MTPE Services: Machine Translation Post-Editing

Human-Quality Post-Editing at Machine Speed

AsiaLocalize provides machine translation post-editing (MTPE) services: native-speaking linguists review and correct machine-translated content at the light, standard or full level you need, in 120+ languages, cutting cost and turnaround for large volumes while keeping translations accurate and consistent.

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Quick definition

What Is Machine Translation Post-Editing (MTPE)?

Machine translation post-editing (MTPE) is the process of having a professional linguist review and correct text produced by a machine translation engine. The post-editor fixes errors in meaning, terminology, grammar and style to an agreed quality level, so you get usable translations faster and at lower cost than translating from scratch.

MTPE at a Glance

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When Is MTPE the Right Choice?

Machine translation is fast but often misses context, terminology and cultural fit. Our native-speaking post-editors, with subject-matter expertise, correct the output to the quality level your content needs, following the light and full post-editing levels defined in the ISO 18587 standard, plus a standard tier in between.

MTPE fits large volumes, repetitive content, tight deadlines and stable terminology. Choose human translation instead for creative and brand copy, highly regulated legal or clinical content, and very short texts.

Translator working on a laptop beside a robot and translation icons, editing machine output
Robot with a crossed-out speech bubble next to a woman holding a large red pen and a check mark

Which Errors Do Our Post-Editors Fix?

Our post-editors correct the typical errors machine translation makes, including:

Which Level of Post-Editing Do You Need?

Reporter interviewing a woman in a stadium while a cameraman films

Light Post-Editing

Light post-editing fixes only what affects meaning: mistranslations, omissions, additions, and spelling or grammar errors that could mislead. Style is left alone, which keeps it fast and economical. It suits:

Pile of British newspapers with overlapping front-page headlines

Standard Post-Editing

Standard post-editing covers everything in light post-editing, plus terminology checked against your glossary and awkward machine phrasing rewritten, so the result reads as clear business language. We apply it to:

Globe ringed by speech bubbles with country flags, standing on a laptop keyboard

Full Post-Editing

Full post-editing brings the text to publication standard: accuracy, terminology, register, tone, idiom and cultural fit, so it reads as if a human translator wrote it. Choose it for customer-facing and brand content, such as:

Light vs. Standard vs. Full Post-Editing: How Do They Compare?

The post-editing level decides how much the machine output is changed. Pick the lightest level that meets your purpose to keep cost and turnaround low.

Light vs. standard vs. full post-editing
Light post-editingStandard post-editingFull post-editing
GoalUnderstandable and accurateClear business languagePublication quality
What is fixedMeaning errors, omissions, additions, misleading grammarLight fixes plus glossary terminology and awkward machine phrasingEverything, including tone, register, idiom and cultural fit
StyleLeft as isImproved where unclearFully polished
Speed and costFastest and lowestMediumSlowest and highest, still below translation from scratch
Best forInternal, real-time and high-volume contentBusiness documents, subtitles and announcementsCustomer-facing, brand and published content
Translator with a coffee cup at a laptop, surrounded by a check mark, target and 120+ languages globe

Ready to Cut Translation Costs With MTPE?

Send us your content and target languages, and we will recommend the right post-editing level for your quality, budget and deadline in 120+ languages.

Frequently Asked Questions

MTPE is the process of having a professional linguist review and correct machine-translated text. The post-editor fixes meaning, terminology, grammar and style to an agreed quality level, so you get usable translations faster and at lower cost than translating from scratch.

MTPE works best for large volumes, repetitive or technical content, tight deadlines and stable terminology. For creative and brand copy, regulated legal or clinical content, or very short texts, human translation is usually the better choice.

We prepare your files and glossary, run the content through a suitable machine translation engine with your translation memory, and then a native-speaking post-editor corrects the output to the agreed level. A final quality check confirms terminology and formatting before delivery.

Light post-editing corrects only the errors that affect meaning and leaves style untouched, which keeps it fast and economical. Full post-editing brings the text to the standard of a human translation, including tone, idiom and cultural fit. Our standard tier sits between the two.

We work with the output of the major neural machine translation engines, and with your own engine if you already have one in place. Where you have no preference we select the engine that performs best on your language pair and content type, because engine quality varies significantly from one pair to another.

For suitable content, usually yes, because the linguist is editing rather than composing. How much you save depends on how good the raw machine output is for your language pair and subject matter, which is why we assess a sample before quoting rather than applying a flat discount.

We offer MTPE in 120+ languages, with a specialization in Asian languages such as Japanese, Korean, Chinese, Thai, Vietnamese, Indonesian and Malay. Engine quality varies by language pair, so we assess a sample before recommending MTPE.