Research

Localization Engineering

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

Apr 1, 20266 min

The Localization API

Professional localization - source refinement, glossary enrichment, human post-editing, quality scoring - encapsulated behind a single POST. One request, multiple languages, results via webhook.

Introducing Lingo.dev v1.0

After proving that retrieval augmented localization reduces LLM terminology errors 24-45%, we built Lingo.dev v1.0 - a localization engineering platform where teams create stateful localization engines with per-locale models, glossaries, and quality scoring.

Retrieval Augmented Localization Cuts LLM Terminology Errors 24-45%

Production localization translates paragraphs and strings, not full pages. At that scale, raw LLMs get domain terminology wrong 24-45% more often than glossary-augmented models - a gap invisible to holistic quality metrics.

VPVeronica Prilutskaya

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