RAG for multilingual markets
Retrieval architectures that preserve factual grounding across translated, regional, and mixed-language corpora.
Multilingual AI Research, Applications, and Engineering
Engineering the Future of Multilingual AI Architecture.
We build advanced language-learning applications, open-source translation tools, and specialize in designing zero-hallucination cross-lingual NLP pipelines for global enterprises. Built by engineers from UC Berkeley and Meta.
Cross-lingual RAG
Retrieval that respects language, region, and meaning.
Translation Evaluation
Programmatic scoring for fluency, fidelity, and terminology.
Semantic Alignment
Cultural and market-aware prompt and content adaptation.
Consumer Apps
Learning products that prove our research in real workflows.
Globalization stack
Evaluation harnesses, retrieval controls, localized prompts, human-review loops, and deployment-ready observability for multilingual LLM systems.
Leo Leo Classics Parlo Canto Mamu Library Translation Helper Enterprise NLP
Research Lab
Language infrastructure for the next billion AI users.
Mamu Labs builds at the intersection of multilingual NLP, application engineering, and product design. Our work spans consumer language apps, open-source translation tools, and enterprise systems for teams bringing LLM products into international markets.
The result is a practical research loop: real learners stress-test our ideas, open tools keep our evaluation standards visible, and enterprise engagements turn that expertise into robust globalization infrastructure.
Explore enterprise servicesCross-Lingual Systems
We design retrieval, evaluation, and prompt-localization layers for products operating across languages and regions.
Applied Research Loop
Our consumer apps turn multilingual AI research into real learner workflows, usage signals, and product-grade infrastructure.
Global-Ready Delivery
We help teams ship language-aware AI features with benchmarked behavior, market-specific nuance, and measurable reliability.
Enterprise Globalization Infrastructure
Corporate NLP & Localization Systems
Helping global technology platforms adapt LLMs to international markets. Specialized engineering in cross-lingual Retrieval-Augmented Generation (RAG), programmatic translation evaluation, and cultural semantic alignment.
Cross-Lingual Pipeline TuningHallucination BenchmarkingAutomated Prompt Localization
Translation quality systems
Evaluation harnesses for fidelity, fluency, terminology consistency, cultural fit, and production regression testing.
Localization operations
Prompt, content, and workflow adaptation for international launches where literal translation is not enough.
Consumer Ecosystem
Language apps powered by the same multilingual engineering lab
Six apps. One research engine. Every tool we ship for learners sharpens our understanding of reading, speaking, translation, and cross-cultural communication.
Parlo
iOSAndroidWeb
Practice conversations with confidence
A conversation-first language learning app designed by linguists using methods practiced by polyglots.
Canto
iOSAndroid
Learn through singing
Translate lyrics, sing along for practice, and put your language knowledge to the test with karaoke.
Leo
iOSAndroidWeb
Learn a language through reading
Leo is an all-in-one reading and language learning app, featuring components like tap to translate while reading, flashcard saving, AI chat practice, and the ability to upload any PDF, ePub, or txt file for translation. It also connects directly to Mamu Library to facilitate downloading new books to your library.
Leo Classics
iOSAndroidWeb
Classic literature for language learners
Public-domain stories and literary works reimagined for language learning, with translation, vocabulary review, and guided reading practice.
Mamu Library
Web
Stories in every language
An open source library with over 100 languages, separated by genre and language level.
Translation Helper
Web
Facilitate manual translations
Facilitate manual translations by annotating parts of a sentence, or whole sentences, to make your translation process easier.
Global AI Systems Audit
Bring your multilingual AI stack to production quality.
We help product and engineering teams evaluate cross-lingual retrieval, translation behavior, hallucination risk, and localization readiness before international launches.