Bottom line

AI security suite that also flags interview cheating from tools such as Cluely. Hiring detection is sales-quoted.

Stands out for: Transcribes interviews and scores AI-coached answers in under 2 seconds, aimed at Cluely, Yoodli, InterviewCoder, and Pickle.

Watch out for: The hiring detector is demo-sold. Retail AI-detector plans exist for writing, but those are a different SKU from interview fraud.

Overview

Polygraf AI is an Austin company selling small-language-model security: on-prem policy enforcement, PII stripping, deepfake detection, and an Interview Cheating AI Detector. The hiring product transcribes live answers and flags coaching from tools such as Cluely, Yoodli, InterviewCoder, and Pickle, with a claimed detection time under 2 seconds. Access for that SKU is a request form, not self-serve checkout.

Hiring and security teams pick Polygraf when they want cheating and deepfake checks without sending audio to a public LLM. Pricing for the interview detector is sales-quoted. A separate retail writing-detector line has existed with trials, but that is not the hiring SKU. The vendor also sells container deployments on Azure, Google Cloud, AWS, and edge hardware. Buying starts with a demo.

Who it's for

Best for

  • TA teams fighting AI-coached live interviews
  • Security teams that want on-prem AI policy enforcement
  • Employers hiring into sensitive or government roles
  • Companies that need deepfake and synthetic-voice checks

Not ideal for

  • Teams that want a self-serve interview SKU with a rate card
  • Buyers who only need a cheap writing detector

Key features

Deepfake detection. Flags synthetic video and audio in interviews.

Interview integrity. Cheating and impersonation signals, including Meeting Guard. Brand is Polygraf AI, not POLYGRAF.

What it does. Watches the interview for deepfakes, proxies, and cheating tools.

AI features

What the AI doesPlan
Live interview transcription and AI-coaching detection Sales-quoted
Deepfake, synthetic voice, and AI-content detection Included

Only features named in the vendor's own documentation. Anything sold separately is marked as an add-on.

Pricing

Starting price Sales-quoted
Free tier

Sales-quoted. The Interview Cheating AI Detector is sold on a demo. Retail writing-detector plans are a different SKU. Confirm current terms on the vendor site.

Checked 19 Sep 2026. Vendors change prices without notice.

See current pricing on Polygraf AI (opens in a new tab)

Is Polygraf AI expensive?

Polygraf AI does not publish a price. It is one of 8 quote-based tools among the 18 candidate fraud & AI detection tools in our directory. 5 have a free tier, and those with a public price typically start around $100 a month.

  • 8 quote-based
  • 5 free tier
  • 10 public price

Worked out automatically from every candidate fraud & AI detection listing, so it updates as the directory changes.

Pros and cons

Pros

  • Interview cheating detector for live audio
  • On-prem deploy option for sensitive employers
  • Flags named coaching tools in real time

Cons

  • Hiring SKU is sales-quoted
  • No self-serve checkout for interviews
  • Writing-detector prices are a different product

How Polygraf AI compares

See all Polygraf AI alternatives, with what each one does differently and a head to head for every pairing.

ToolFree tierFromMCPAPICompare
Polygraf AI (this tool) Sales-quoted
Persona Identity verification if the risk is fake people, not coached answers. Sales-quoted Compare
Veriff ID and biometric checks at a published per-check rate. $0.80/check Compare
HireVue Enterprise video interview suite with its own integrity tools. Enterprise Compare
Spark Hire One-way video interviews without a dedicated cheating detector. $249/mo Compare
Persona

Sales-quoted API

Identity verification if the risk is fake people, not coached answers.

Veriff

$0.80/check API

ID and biometric checks at a published per-check rate.

HireVue

Enterprise

Enterprise video interview suite with its own integrity tools.

Spark Hire

$249/mo API

One-way video interviews without a dedicated cheating detector.

Frequently asked questions

What is Polygraf AI?
Deepfake and interview-cheating detection. Polygraf AI detects deepfakes and interview cheating, including Meeting Guard. Polygraf AI is listed under Candidate fraud & AI detection and Interviewing in the Work Insiders directory.
Is Polygraf AI free?
No. Polygraf AI is priced by quote — contact their sales team for pricing.
Does Polygraf AI have an MCP server or API?
Polygraf AI has a public API. It does not currently list an MCP server.
What are alternatives to Polygraf AI?
Polygraf AI alternatives worth comparing are Persona, Veriff, HireVue and Spark Hire. The comparison table above shows free tier, starting price, MCP and API side by side.