Language data & AI services
Native speakers who check your language AI.
HumanLect is a European agency for AI evaluation. We find, test and manage native reviewers and subject experts across Europe. They check chatbots, voice assistants and speech recognition in every European language, including the regional variants and dialects that are hard to find.

Human expertise.
Better language AI.
Who we work for
Two kinds of clients, one job: real people who know the language
We staff your language projects
You need reviewers for a language or region you cannot find. We recruit, test and manage them. They work in your platform, and you have one contact and one invoice.
"We need eight Flemish reviewers next week."
We test your chatbot or voice assistant
Native speakers try your product the way real customers will, and mark every wrong, unnatural or misunderstood answer. You get a short report with what to fix first.
"Does our assistant work for customers in Switzerland?"
Services
Start small, or let us run it for you
Every job starts with a short conversation and a written quote.
Quick checks · fixed price, about 1 week
- Language checkTwo native reviewers test your chatbot with 100 realistic questions.
- Dialect checkReviewers from Flanders, Switzerland or Austria test whether your AI works for them too.
- Human voice testNative speakers with different accents call your voice assistant.
Ongoing work
- Managed reviewersNative reviewers and subject experts for your rating, ranking, transcription and voice projects.
- Standing teamThe same reviewers for every new version of your model, so results stay comparable.
Why native matters
Fluent is not the same as correct
Three typical mistakes that only a native speaker from the right region catches.
The wrong way to count
AI saidquatre-vingt-quinze euros
Reviewer correctednonante-cinq euros
Belgians say "nonante". The French form sounds foreign to every Belgian caller.
Too casual for a bank
AI saidKein Stress! Sperr deine Karte einfach.
Reviewer correctedBitte sperren Sie Ihre Karte sofort.
German banks address customers formally, certainly when a card is lost.
One word breaks the call
AI heardMies Fellow ist gestohlen worden.
Caller meantMein Velo ist gestohlen worden.
"Velo" is the Swiss word for bicycle. The claim could not be handled.
Illustrative examples. Client work is confidential and never shown.
Languages
All of Europe, including the hard-to-find variants
Standard German or Spanish is easy to find. Flemish, Swiss German, Luxembourgish, Nynorsk, Valencian or Galician is not. That is where we are most useful.
Western Europe
- Dutch Netherlands, Flanders
- Frisian
- French France, Belgium, Switzerland
- German Germany, Austria, Switzerland
- Swiss German
- Luxembourgish
- English UK, Ireland
- Irish, Welsh
Northern Europe
- Swedish, Danish, Finnish
- Norwegian Bokmål and Nynorsk
- Icelandic, Faroese
- Estonian, Latvian, Lithuanian
Southern Europe
- Spanish
- Catalan, Valencian
- Galician, Basque
- Portuguese
- Italian including regional varieties
- Greek, Maltese
Central and Eastern Europe
- Polish, Czech, Slovak
- Hungarian, Romanian
- Bulgarian, Croatian, Serbian
- Slovenian, Bosnian
- Ukrainian
We usually propose reviewer profiles within a week. For rare languages and dialects it can take longer; we tell you upfront how long, and whether we can do it well.
European languages are multicultural. Dutch, for example, is shaped every day by people from many backgrounds, with loanwords, expressions and accents. Our reviewers reflect that, so your AI understands real users, not only the textbook language.
How we work
Small, personal and careful
- Native reviewers only. Every language is checked by people who grew up with it.
- Confidential. Every reviewer signs an NDA. EU-based and GDPR-compliant.
- Fair pay. Good work needs people who are paid properly.
Become a reviewer
Native speaker? Join our network.
Freelance, remote and project-based. We contact you when a project fits your profile, and agree the rate with you before you start. See our open positions.
- Any European language. Including regional variants and dialects. Tell us exactly where your language comes from.
- Generalists and specialists. Good language sense is enough to start. A background in law, health, finance, tech or education is a plus.
- Flexible. Work from anywhere. No minimum hours.
- A short test first. Selected applicants do a small sample task.


Tell us what you need.
Send us a short email with:
- the language or region
- what you want to test or staff
- your timeline
We reply within one working day.
