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Originality.AI vs Parafact

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Free plan
Only Originality.AI (Parafact has paid plans only)
Public API
Both have one
Higher Trust score
Originality.AI — 89 vs 75 for Parafact
Best fit
Originality.AI: Content agencies auditing freelance submissions before they pay for them · Parafact: Writers wanting a quick first-pass check on factual claims before publishing
Platforms
Originality.AI: Web, Chrome extension · Parafact: Web

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

Originality.AIAI-text and plagiarism detection built for publishers and agenciesParafactChecks pasted text for factual claims and returns citations verifying or disputing each one.

Side by side

FactOriginality.AIParafact
CategoryAI Detection & HumanizersFact-checking & Verification
Pricing modelFreemiumPaid
Starts at$14.95/mo—
Public APIYesYes
Trust score89 / 10075 / 100
PlatformsWeb, Chrome extension, APIWeb, API
CompanyOriginality.AIParafact AI
Launched2022—
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

Originality.AI

The detector to pick if you are a publisher or agency policing freelance output at volume, because the team history and writing replay matter more than the raw score. A free Basic tier (three AI-only scans a day, 2,000 words each) now lets you test it before paying. Do not use it to accuse a student; no detector is accurate enough to carry that weight.

Pros

  • Credit model is legible: 100 words per credit, no hidden weighting
  • API on the higher tier makes batch pipelines possible
  • Chrome extension works inside Google Docs, where the writing actually happens
  • Writing replay from revision history is process evidence, not just a score
  • Free Basic tier allows three AI-only scans a day with file upload, no subscription needed

Cons

  • Monthly subscription credits expire, so a light month is wasted spend
  • The jump from $14.95 to $179 a month is a steep single step
  • False positives on heavily edited or non-native English writing are a documented hazard across every detector
  • Accuracy benchmarks are largely vendor-run

Parafact

Parafact is a reasonable first pass for catching an obviously wrong claim before publishing, but it should not replace an editor's own source-checking on anything that matters. The catch is that neither pricing nor a free tier is clearly shown on the site, which makes the real cost of using it regularly hard to know upfront.

Pros

  • Returns citations alongside each flagged claim
  • Processes pasted text directly, no document upload needed
  • Developer API available for automated workflows

Cons

  • Pricing and free-tier availability are not clearly shown on the site
  • Company identity and headquarters are not disclosed

Which one fits

Choose Originality.AI if you need

  • Content agencies auditing freelance submissions before they pay for them
  • Publishers sweeping large archives for machine-written pages
  • SEO teams screening acquired, syndicated or outsourced content

Choose Parafact if you need

  • Writers wanting a quick first-pass check on factual claims before publishing
  • Teams wanting to automate claim-checking via the API

Originality.AI vs Parafact: the questions people ask

Is Originality.AI cheaper than Parafact?

Originality.AI starts at $14.95/mo. An entry price for Parafact is not confirmed by us yet, so check its pricing page before you compare.

Does Originality.AI or Parafact have a free tier?

Originality.AI has a free tier; Parafact has paid plans only.

Which has a public API, Originality.AI or Parafact?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

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