Localization Engineering

Research, architecture, and findings from building localization infrastructure at scale.

Articles

The Localization API

Professional localization - source refinement, glossary enrichment, quality scoring, and optional human review - encapsulated behind a single POST. One request, any number of target locales, results via webhook.
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Introducing Lingo.dev v1.0

After proving that retrieval augmented localization reduces LLM terminology errors 17-45%, we built Lingo.dev v1.0 - a localization engineering platform where teams create stateful localization engines with per-locale models, glossaries, and quality scoring.
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Retrieval Augmented Localization Cuts LLM Terminology Errors 17-45%

Raw LLMs translating isolated paragraphs produce 17-45% more terminology errors without a domain glossary. Holistic quality metrics miss this entirely.
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