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Undetectable AI vs WordAi

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

Cheaper paid plan
Undetectable AI — $9.99/mo vs $57/mo for WordAi
Free plan
Only Undetectable AI (WordAi has paid plans only)
Public API
Both have one
Best fit
Undetectable AI: Marketers cleaning up bulk LLM drafts before publishing · WordAi: Affiliate and niche-site operators refreshing large libraries of existing articles
Platforms
Undetectable AI: Web, Chrome extension · WordAi: 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

Side by side

FactUndetectable AIWordAi
CategoryAI Detection & HumanizersParaphrasing & Rewriting
Pricing modelFreemiumPaid
Starts at$9.99/mo$57/mo
Public APIYesYes
Trust score89 / 10092 / 100
PlatformsWeb, API, Chrome extensionWeb, API
CompanyUndetectable Inc.Glimpse.ai
Launched20232011
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

Undetectable AI

Buy it only if you accept that passing a detector is a moving target: detector vendors retrain constantly, and text that cleared last month can flag next month. As a multi-format detection dashboard it is more defensible than as a bypass tool.

Pros

  • Detector and rewriter run in one pass, so you see which sentences changed and why
  • Coverage extends past text into image, voice, video and document classifiers
  • Browser extension works inside Docs and Gmail rather than a separate tab
  • Entry tier is genuinely cheap at annual rates

Cons

  • Rewrites often flatten voice and add filler to break statistical patterns
  • Detection on short passages is unreliable in both directions
  • Word quotas drain fast because rejected attempts still consume them
  • The free trial caps at 250 words, barely enough to judge output quality

WordAi

A 2011-era article spinner with a newer model behind it, worth money only if your workflow genuinely needs many rewrites of text you already own. For producing anything new, a general LLM assistant does far more at the same price.

Pros

  • API access is included on every paid plan instead of being an enterprise upsell
  • Bulk mode plus spintax export fits programmatic publishing pipelines
  • Long-lived product under a stable owner, with an integration path to sibling tool Article Forge
  • 30-day money-back guarantee on top of the 3-day trial

Cons

  • Rewriting only: no drafting, research, outlining or fact checking
  • Marketing leans on 'pass AI detection' claims that no vendor can actually guarantee
  • No free tier at all, and the trial is only 3 days
  • Entry price rose to $57 month-to-month with the Starter tier gone from the pricing page

Which one fits

Choose Undetectable AI if you need

  • Marketers cleaning up bulk LLM drafts before publishing
  • Editors wanting a second opinion on submitted copy
  • Teams screening images and audio for synthetic origin
  • Non-native writers smoothing register and tone

Choose WordAi if you need

  • Affiliate and niche-site operators refreshing large libraries of existing articles
  • Agencies producing regional or client-specific variants of the same landing-page copy
  • Teams that want rewriting available as an API call rather than a chat window

Undetectable AI vs WordAi: the questions people ask

Is Undetectable AI cheaper than WordAi?

On published entry prices, Undetectable AI starts lower — $9.99/mo against $57/mo for WordAi. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Undetectable AI or WordAi have a free tier?

Undetectable AI has a free tier; WordAi has paid plans only.

Which has a public API, Undetectable AI or WordAi?

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

All Undetectable AI alternatives →All WordAi alternatives →Browse all AI Detection & Humanizers →