Google Cloud Translation

Machine translation API with glossaries and custom model tuning

AI Translation ToolsFree planOverseas★★★★☆ 4.0

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What is Google Cloud Translation?

Google Cloud Translation is the machine translation service inside Google Cloud, delivered as an API for text and documents. The basic tier handles straightforward text across a very long language list, while the advanced tier adds glossaries so product terms and brand names survive translation, batch document translation that keeps formatting, and custom models trained on your own translated examples. Because it runs in Google Cloud it scales to bulk jobs and integrates with storage and analytics for pipelines. It is developer infrastructure: there is no editing interface, and quality depends on how much domain terminology you configure.

Last updated: 2026-09-20. This site only provides an index; for exact features, pricing, and licensing, see the official website.

Key features

Text translation API covering a very large number of languages
Document translation that preserves layout in common file formats
Glossaries that lock down brand and product terminology
Custom model training from your own parallel translated data
Batch and asynchronous jobs for large volumes of content
Integration with Cloud Storage, BigQuery and other Google services

Pros & cons

Strengths

Scales from a single request to bulk document jobs
Glossaries fix the terminology drift generic engines produce
Well documented, with client libraries in common languages

Watch out for

Developer-only, so no editor for non-technical reviewers
Billed per character, which adds up on high-volume content
Custom models need a decent parallel corpus to beat the default

Best for & use cases

product localisation pipelines, bulk document translation and developer integrations

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FAQ

Can I stop brand terms from being translated?

Yes, that is what glossaries are for. You define source and target pairs for product names and technical terms, and the service applies them consistently instead of choosing its own wording sentence by sentence.

Is the basic tier good enough in practice?

For general content it often is. The advanced tier matters when you need glossaries, batch document translation, or custom models trained on translated material from a specialised domain.

How is the service billed?

By characters translated, with a free monthly allowance and separate charges for custom model training and hosting. Modelling the volume matters before a large content migration.