AI Interpreter vs. Human Simultaneous Interpreter: Cost, Setup and When to Use Which
AI interpreter or human simultaneous interpreter? An honest comparison of cost, setup and use cases — and which one fits your event.
Two routes, one goal: everyone understands the event
You are planning an annual general meeting, a professional conference or a town hall — and the audience includes people who speak German, French, Italian and English. That puts you in front of a classic decision: do you book a team of simultaneous interpreters with booths and hardware? Or do you use an AI interpreter that delivers live translated captions and an AI voice straight to every smartphone?
Both approaches have their place. This article compares them honestly — what they cost, how much setup each demands, and which situations call for which solution. We deliberately avoid quoting specific figures: pricing depends heavily on languages, duration and region. But the cost logic can be described clearly.
What a human simultaneous interpreter really costs
With human interpreting, you rarely pay for the translation alone. The bill is made up of several parts:
- Fees per language direction: Professional simultaneous interpreting usually requires two interpreters per language who take turns, because intense concentration tires after roughly 30 minutes.
- More languages = more teams: Four target languages means roughly four teams. Costs scale almost linearly with each additional language.
- Hardware and booths: Sound-insulated interpreter booths, receiver units with headsets, an on-site audio technician.
- Travel, expenses, preparation: Getting there and back, accommodation, time to read into the topic.
For multilingual events, this adds up quickly. And the logistics are not trivial: booths need space, receiver units have to be handed out and collected again.
What an AI interpreter does differently
An AI interpreter like Suisse Notes Live Translation flips the logic. Instead of booking each language separately, you open one session — and it covers 60+ languages at the same time.
Here is how it works:
- The speaker (host) starts the session.
- The audience joins via QR code or link, right in the browser — no app, no account, no installation.
- Each person picks their own language and receives live translated captions plus an AI voice, with speaker labels.
- It works on-site, hybrid and fully online.
The cost logic is fundamentally different: the number of languages no longer drives the effort — usage does. You can try it within your free minutes; after that, Live Translation is included in the Pro plan (the Starter plan does not include it). Overall the approach is leaner than a booth infrastructure and typically cheaper than a multi-person interpreter team — without having to promise any specific number.
Setup and lead time, side by side
| Aspect | Human interpreting | AI interpreter |
|---|---|---|
| Lead time | Weeks (booking, availability) | Minutes to hours |
| On-site hardware | Booths, receivers, audio tech | Attendees' own smartphones |
| Extra language | New team, more cost | Already included |
| How the audience joins | Pick up a receiver | Scan a QR code |
The practical difference is tangible: for an AI interpreter you don't have to rearrange a room or distribute hardware. A QR code on the screen is enough.
A practical example: the four-language AGM
Picture the annual general meeting of an association with 120 members. Roughly half speak German, a quarter French, plus a handful of Italian and English speakers.
With human interpreting, you book three to four language teams, rent booths, hand out receiver units to everyone who needs a translation — and collect them again afterward. Effort and cost climb with every language.
With the AI interpreter, you project a QR code onto the screen. Anyone who wants a translation scans it, picks their language and either reads along or listens to the AI voice through headphones. A German speaker follows in German, a guest from Ticino in Italian, an international partner in English — simultaneously, with no extra booking.
When to use which
This is not about "better or worse" — it's about the right fit.
The AI interpreter is strong when:
- many languages are needed at once,
- lead time is short,
- the event is hybrid or online,
- you want to skip booth logistics,
- budget clarity and scalability matter.
A human interpreter still makes sense when:
- the highest diplomatic or legal nuance is required,
- a field demands extremely specialised vocabulary,
- a ceremonial setting expects a personal presence.
Many organisations combine both — or find that the AI interpreter covers the large majority of their events perfectly well, reserving human interpretation for the genuinely delicate moments.
The bottom line
A human simultaneous interpreter delivers proven quality — at the price of lead time, logistics and costs that grow with every language. An AI interpreter covers many languages from a single session, is ready in minutes, and puts the translation directly on every smartphone. For multilingual events, short lead times and hybrid formats, that is often the leaner route.
Suisse Notes is a Swiss company, and Live Translation can be tested with no strings attached within your free minutes. The easiest way to be convinced is to try it at your next meeting.
[Discover Suisse Notes Live Translation →](/en/dolmetschen/)