Comparison. Interview-as-a-service solved depth. It reintroduced the variance.
Karat and similar services put a real, trained engineer in the room. That is a genuinely better signal than a coding test, and it is why they exist. It is also expensive, slow, and quietly inconsistent in exactly the way an outsourced panel is.
What they are genuinely good at
A comparison page that says the alternative has no strengths reads as dishonest and costs more trust than it wins.
Real strengths
- A real human, which some candidates strongly prefer and some roles genuinely require
- Deep, adaptive questioning from someone with real experience
- Interviewers are trained and calibrated, which is more than most in-house panels can say
- They absorb the scheduling burden entirely
- Nobody has to have an argument internally about whether AI interviewing is acceptable
Where it stops working
- $150 to $400 per screen, which caps how much of your funnel you can afford to run through it
- Days to weeks of turnaround, because you are queueing for a human calendar
- Calibrated is not the same as consistent. Different interviewers still produce different outcomes for the same candidate, and the variance is invisible to you
- You cannot audit the judgment. The criteria live in a person’s head
- The write-up is one person’s recollection, not evidence you can check against a transcript
Side by side
| Human interview services | Live | |
|---|---|---|
| Depth of signal | High, when the interviewer is good | High, and the same every time |
| Consistency | Varies by interviewer, invisibly | One rubric, one standard |
| Turnaround | Days to weeks | Minutes after the session |
| Scheduling | Two calendars must agree | None. The candidate starts when they want |
| Evidence | A written summary | Quotes checked against the transcript, and a timeline that jumps to each one |
| Auditability | The criteria are in a person’s head | Published rubric, versioned. A bias audit is planned and has not been completed |
| Cost per interview | $150 to $400 | $16 to $25 at plan rates |
| Candidate acceptance | Higher. Some candidates will refuse an AI interview, and that is a real cost | Lower, which is why declining routes to a human rather than ending the process |
Which one you should actually buy
Not Live, if
Your candidate population will not accept an AI interviewer, and you would rather pay than find out. You are hiring at very low volume where the per-screen price does not matter. Or the role is senior enough that the first round should be a conversation with a peer, which is a legitimate position and one we agree with above a certain level.
Live, if
You are running enough screens that $200 each is shaping your funnel. You want one interviewer and one rubric in place of the variance between interviewers that you can only suspect. You need results the same day. Or you need written evidence behind each score, because the decision may have to be explained later.
These are not mutually exclusivePlenty of teams keep an async platform for high-volume filtering and use Live for the round that decides who reaches an engineer. Live replaces an inconsistent first-round conversation, not your whole funnel.
Judge it on your own interview.
Send an interview to yourself and read your own report.