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# 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.  
[Read article](/content/en/blog/the-localization-api/index.html)

### **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.  
[Read article](/content/en/blog/introducing-lingodotdev-v1/index.html)

### **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.  
[Read article](/content/en/research/retrieval-augmented-localization/index.html)

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