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AI moderation in 20+ languages: why it changes international research

Each of our 20+ languages has its own named moderator with a real native voice, not a translated script. Why that changes international research.

Mattias Sjölunder
Mattias Sjölunder
Co-Founder & CTO · April 18, 2026 · 6 min read

There are two ways to run a research interview in a language that is not English. You can write your questions in English, translate them, and have someone read the translation aloud. Or you can conduct the whole conversation natively, in the participant's own language, with someone who actually speaks it. The first approach is what most international research has settled for. The second is what changes the results, and it is what Nava is built to do across 20+ languages.

I am the CTO at Nava Insights. I want to explain what "native voice, not a translated script" means technically, because the distinction is easy to wave at and easy to get wrong, and it is the difference between comparable depth across markets and a stack of interviews that only look the same on the surface.

Translate-the-script breaks in quiet ways

A translated script fails in places that do not show up until you read the transcripts.

Start with the obvious one: idiom. Phrases do not survive translation intact. A question that lands naturally in English can come out stiff, formal, or slightly wrong in another language, and a participant hears that wrongness immediately. It signals that the conversation was built for someone else and they are being processed through it. That alone changes how much they offer.

Then there is rapport, which is the thing that makes someone actually open up. Rapport is built in the small moves of conversation: the phrasing of an acknowledgment, the way a follow-up picks up a person's own words, the rhythm of turn-taking. None of that transfers through a script that was written in one language and read aloud in another. The follow-ups, especially, are where a translated approach falls apart, because a real probe has to be formed live, in the language the person just spoke, anchored to the exact words they used. You cannot pre-translate a question you have not heard yet.

And there is candor. People are more honest, more detailed, and more themselves in their first language. Push someone into a second language, or into a conversation that feels translated, and they simplify. They give you the version they can express comfortably, not the version that is true. You lose exactly the nuance you ran qualitative research to find.

A translated script asks people to meet your language. A native moderator meets theirs, and that is when they tell you what they actually think.

What native voice means, precisely

Here is the part I want to be exact about, because "native" gets used loosely.

In Nava, each of the 20+ languages has its own named AI moderator with a natural native voice. That is not one voice engine reading translated text. It means the moderator speaks the language as a native speaker would: the right intonation, the natural cadence, the idiom, the way a real person in that market would actually phrase a question and a follow-up. The conversation is conceived in the language, not ported into it.

Concretely, that means the follow-up questions are generated in the participant's language, grounded in what they just said, in their own words, rather than translated from an English plan after the fact. The probing (deciding when to dig, staying neutral, picking up the specific phrase someone used) all happens natively. A participant in Stockholm and a participant in Lisbon are each having a real conversation in their own language, not a localized echo of an English one.

The voice itself matters more than people expect. Hearing a question in a flat, obviously-foreign accent puts a participant on guard in a way a natural native voice does not. When the voice sounds right, the small constant signal of "this was not made for me" disappears, and people relax into the conversation. That relaxation is where the honest, detailed answers come from.

Strong in the Nordics, broad across Europe

This is where I will be specific about coverage, because it is a real strength and not a generic claim.

Nava runs native-voice moderation across the Nordic languages: Swedish, Norwegian, Danish, and Finnish. Anyone who has tried to do serious qualitative research across the Nordics knows these are not interchangeable, and they are not well served by tools built for larger markets. Each has its own moderator and its own native voice. Around that core sits the broader European set, including German, French, Spanish, Dutch, Italian, and Portuguese, along with English, so a study that spans Northern and Western Europe can run in each market's own language rather than defaulting everyone to English and quietly losing the people who are less comfortable in it.

The languages span English, Swedish, German, French, Spanish, Norwegian, Danish, Finnish, Dutch, Portuguese, and Italian, among others, each with its own named moderator and a natural native voice. The point of the list is not the count. It is that depth does not drop off as you cross a border.

The operational change: one study, many markets, at once

The methodology matters, but the operational shift is what changes how you actually work.

Traditionally, a multi-market qualitative study is several studies wearing a trench coat. You recruit a local moderator per market, schedule around their availability, run the interviews over weeks, and then try to reconcile findings that were gathered by different people with different styles. Comparability is the first casualty. When the moderation differs market to market, you can never be sure whether a difference in the data is a real difference between markets or just a difference between two interviewers.

Native AI moderation removes that problem at the root. You design one study, launch it across every market at once, and every participant gets the same careful interviewing approach in their own language. The moderation is consistent by construction, so when you compare Sweden to Germany to Spain, you are comparing the markets, not the interviewers. You get comparable depth everywhere.

And it happens in hours, not weeks. The interviews run in parallel rather than in a sequence gated by human schedules, and the analysis follows automatically, every insight traceable to the specific quote and transcript position it came from, in whatever language it was spoken. Nothing is a black box, even across a dozen markets.

International qualitative research has long forced a choice between depth and reach: go deep in one market, or go wide and shallow across several. Native-voice moderation is how that tradeoff stops being necessary. You can ask people, in their own language, what they actually think, everywhere you operate, and get answers you can genuinely put side by side. That is the change, and it is a bigger one than another line on a language list.

Mattias Sjölunder
Written by
Mattias Sjölunder
Co-Founder & CTO

Mattias is Co-Founder and CTO of Nava Insights, where he leads the engineering behind the real-time voice AI that powers every interview.

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