An AI interpreting vendor may claim a saving of 98% against a human interpreter. That percentage can be arithmetically correct and still be the wrong number for your meeting. It depends on the human quote chosen, the AI plan's actual usage, booking minimums and what each service delivers.
This guide is a worksheet for checking a savings claim against your use case. For a broader survey of meeting costs, see our meeting translation cost guide. MirrorCaption sells AI transcription and translation, so treat our product as one option to quote and test, not as a substitute for a qualified interpreter where one is required.
- Get both quotes for the same meeting duration, languages, audience and service level before calculating a percentage.
- A wage, a public-sector contract, a court fee and a retail customer price measure different things. They are useful context, not interchangeable quotes.
- Include minimum booking, included hours, overages, seats, equipment and review in the total cost.
- For legal, clinical or other consequential communication, test quality and confirm any required human qualification before deciding on price.
Check the denominator behind an AI savings claim
JotMe's published comparison illustrates the problem. It places a $350 human interpreter-hour beside a $4.50 AI hour derived by dividing an annual $1,800 plan by 400 included hours. That comparison implies about 98.7% savings if every included hour is used and both figures describe the same service. The $350 figure in that example is a vendor assumption, not a quote for your event; the $4.50 is a full-use effective rate, not necessarily your marginal cost for one meeting.
Ask for the source and scope of each number. A human quote for simultaneous conference work cannot be replaced in the denominator by a phone-interpreting contract. Likewise, an AI subscription's advertised effective hourly cost rises if you use only part of its allowance.
Why published human rates cannot share one price ladder
These official or first-party figures show how different the billing units are. They are examples to identify the right category for your comparison, not competing bids for one job.
| Published figure | What it measures | Use in a quote audit |
|---|---|---|
| BLS: $60,170 median annual pay (May 2025) | Worker earnings across interpreters and translators | Labor-market context; not a customer price |
| Illinois DoIT: $0.60 per minute | State shared-service phone interpreting | Relevant only to an eligible phone-service purchase |
| LanguageLine: $3.95 per minute | Retail on-demand audio interpreting | A public retail example for that channel |
| Federal courts: $617 full day (effective October 1, 2026) | Certified court-interpreter contract fee | A court-specific daily fee; not an hourly event quote |
Dividing a court day fee by eight creates an arithmetic hourly equivalent, but it does not create an eight-hour retail rate. The federal court page also distinguishes certified, professionally qualified and language-skilled interpreters. For a real purchase, get a written quote for the required language, setting and qualification.
Compare the total for one defined assignment
Write down the assignment first: session count and length, language directions, concurrent speakers, listener count, required accuracy, delivery format and cancellation terms. Then calculate:
- Human total: quoted interpreter rate × billable minimum × number of interpreters × sessions, plus preparation, travel, equipment and any platform charge in the quote.
- AI total: subscription or event charge, overage and seat charges, plus equipment and the human review needed for the setting.
- Savings: (human total − AI total) ÷ human total × 100. State the scope and period next to the result.
Illustrative arithmetic, not market prices
Suppose four 90-minute meetings each need one interpreter at a quoted $250 per hour with a two-hour minimum. The human invoice is 4 × 2 × $250 = $2,000 before extras. If an AI service quotes $20 per session for the same four meetings, its starting total is $80 and the headline saving is 96%. If two paid seats and review add another $320, its total becomes $400 and the saving becomes 80%. Neither percentage is a general market estimate.
A large audience may add receiver equipment to a human quote or paid seats to an AI quote. Some tools allow one host to share captions; others charge per viewer. Confirm the actual plan terms rather than multiplying listener count by session hours automatically. MirrorCaption's current plan and included credit should be checked on its pricing page for your region before budgeting.
Price the service and the accuracy standard together
Real-time captions, machine translation and professional interpreting do different work. A lower price for captions is useful if participants can verify meaning and mistakes are recoverable. It is a poor comparison if the event requires a qualified human interpreter, confidentiality commitments or immediate correction of legal or clinical language. See our translation versus interpretation guide for the service distinction.
The American Translators Association reports that a WHO evaluation found only one passing result among 90 tests of one AI interpreting system. That is ATA's account of a specific evaluation, not a benchmark for every tool or language. It is a reason to run a representative test and retain qualified human support where the consequences of error are high. Our guide to AI interpreter mistakes in business calls gives examples to test for.
Six questions to send every vendor
- What exact meeting, language pair and interpreting mode does this quote cover?
- What is the minimum billable period, and what happens if the meeting runs long or is cancelled?
- How many interpreters, operators, paid seats or channels does the quote include?
- For a subscription, what happens to unused hours and what is the overage price?
- Who handles terminology preparation, live corrections and post-meeting review?
- What qualifications, privacy terms and accuracy checks does this setting require?
Request the answer in writing, then rerun the calculation on the same period. That gives you a defensible procurement comparison without assuming a universal “human price” or “AI price.”
Frequently asked questions
Is AI interpretation always 98% cheaper than a human interpreter?
No. A vendor example can reach that figure with a particular human benchmark and full use of an AI subscription. Your result depends on your actual quotes, minimums, usage, seats and review costs.
Can I use interpreter wages as the human quote?
No. The BLS median pay describes worker earnings, while a customer quote may include scheduling, nonbillable time, equipment and agency services.
When should a human interpreter stay in the budget?
When the assignment requires a qualified interpreter or errors carry serious legal, medical or contractual consequences. Compare an AI-assisted workflow only after confirming the receiving organization's requirements and testing the relevant languages and terminology.
Try MirrorCaption's real-time transcription and translation, then compare the result with a written human-interpreter quote for the same task.
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