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AI Undetectable
FreemiumAPI
Paste an AI draft into most humanizers and you get back the same sentence skeletons with different words — detectors still flag it, and you've learned nothing about why.
$5.00/mo · Free tier: 3-day trial with text detection, image detection, humanizing, and rewriting access · Checked Oct 31, 2026
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Summary
AI Undetectable runs detection and rewriting inside a single workspace, so you can score a draft before touching it, pick a rewrite depth, then compare the original and result side by side before publishing or submitting. The vendor's own benchmark, run on 32 frozen-holdout rewrites against two public detectors, found the humanizer passed a factual-quality gate 93.75% of the time — and cleared both detectors on a strict simultaneous pass exactly 0% of the time. That number is printed on their site, not buried. For student drafts and marketing copy where a single detector pass is the bar, the workflow holds. For teams that need guaranteed clean scores across every major detector, this tool tells you plainly it cannot deliver that — and no tool in the category honestly can.
Bottom line: Reach for this when you need a detection signal plus a structural rewrite in one place for English or one of four other supported languages; walk away when your use case requires a verified human score across multiple detectors simultaneously, because the vendor's own benchmark confirms that bar is not cleared.
Pricing Plans
SubscriptionLast verified 4 days ago- Price
- $5.00/mo
- Free Tier
- 3-day trial with text detection, image detection, humanizing, and rewriting access
Basic
$9.99per month
$60/yr Save 50%
10K credits/month. 50% off yearly billing ($5.00/mo). Basic uses 1 credit per input word. Stealth uses 2 credits per input word.
- 10,000 credits for rewriting each month
- Limited detector access
- Limited image detector access
- Basic and Stealth rewrite modes
- Five writing modes
- Five supported languages
20K credits/month
$19per month
$114/yr Save 50%
20K credits/month. 50% off yearly billing ($9.50/mo). Most popular tier.
- 20,000 credits for rewriting each month
- Expanded detector access
- Expanded image detector access
- Basic and Stealth rewrite modes
- Five writing modes
- Five supported languages
35K credits/month
$31per month
$189/yr Save 49%
35K credits/month. 50% off yearly billing ($15.75/mo).
- 35,000 credits for rewriting each month
- Unlimited text detector checks
- Unlimited image detector scans
- Basic and Stealth rewrite modes
- Five writing modes and languages
- API-ready access
- Priority rewriting access
For Business
Custom
Bulk credits, shared workflows, or higher-volume rewriting. Custom plan available upon contact.
- Bulk credits
- Shared workflows
- Higher-volume rewriting
View full pricing on aiundetectable.com →
Pricing may have changed since last verified. Check the official site for current plans.
Find your fit
Before you choose AI Undetectable
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Pros
- Detection and rewriting live in the same workspace, so you never lose context switching between tools — and you see the AI-likelihood score before committing to a rewrite rather than after.
- Side-by-side comparison of the original and humanized draft is built into the review step, which means fact-checking for preserved names, numbers, and claims happens before you publish rather than after a reader flags an error.
- Five writing modes (general, essay, article, marketing, story) and two rewrite depths let you match the rewrite to the document type, so an essay rewrite does not come back formatted like ad copy.
- Five supported languages (English, Spanish, French, German, Portuguese) cover the most common non-English content workflows, which means teams producing multilingual marketing drafts are not forced to run separate tools per language.
- The vendor publishes their own benchmark with raw pass rates including failures, so you are not betting a sprint on a marketing claim — the ceiling is documented and you can plan around it.
Cons
- The vendor's own 2026 benchmark found a 0% strict simultaneous pass rate across both tested detectors on 32 frozen-holdout rewrites — meaning any workflow that requires a guaranteed clean score on multiple detectors at once will fail, and teams in that situation will need to either accept manual revision as a mandatory final step or evaluate a tool making more specific detector-compatibility claims.
- Structural reconstruction at Stealth depth changes cadence and phrasing, which means subject-matter experts reviewing the output must re-verify that domain-specific claims and technical phrasing were not softened or reordered into inaccuracy — a gate that adds editing time the basic workflow does not account for.
- There is no self-hosted option, so teams operating under data residency requirements or handling confidential client drafts cannot keep text off vendor infrastructure — teams with those constraints will need a self-hostable alternative regardless of how well the rewriting performs.
About
- Platforms
- Web
- API Available
- Yes
- Self-Hosted
- No
- Last Updated
- September 21, 2026
Best For
Who it's for
- Humanizing AI text
- Detecting AI content
- Rewriting for natural style
What it does well
- Student drafts
- Marketing copy
- Client edits
- Long-form content
Recommended skills for this tool
Auto-curated by the AIDiveForge recommendation matrix. These skills are predicted to enhance this tool based on category, capability, and domain signals.
-
Editorial Style Matcher transform 32%
Apply a supplied house style while preserving facts and meaning.
Why: category partial · caps 0/0 · domain content
-
Draft Tightener enhance 32%
Shorten a draft to a requested budget while preserving its factual commitments.
Why: category partial · caps 0/0 · domain content
-
Fact-and-Source Annotator post 32%
Attach evidence and verification status to the factual claims in a draft.
Why: category partial · caps 0/0 · domain content
Frequently Asked Questions
- Is AI Undetectable free?
- AI Undetectable offers a free option alongside paid upgrades. Pricing: $5.00/mo. Check the current allowances and terms before choosing a plan.
- Does AI Undetectable have an API?
- Yes. AI Undetectable exposes a developer API. See the official documentation at https://aiundetectable.com for details.
- What platforms does AI Undetectable support?
- AI Undetectable is available on: Web.
Most humanizers swap words but keep the same sentence patterns, so detectors still flag the text and users gain no insight into the original score.
AI Undetectable keeps detection and rewriting in one workspace. Users score a draft first, choose a rewrite depth, then review the original and result side by side. The vendor states its benchmark on 32 frozen-holdout rewrites showed a 93.75% factual-quality pass rate, yet a strict simultaneous pass on both tested detectors occurred 0% of the time.
Key features
Five writing modes and two rewrite depths support student drafts, marketing copy, client edits, and long-form content. Side-by-side comparison lets users check names, numbers, and claims before publishing. The tool runs on the web with an API available.
Pricing and access
Subscription starts at $5.00 per month with a 3-day free trial.
Pros and cons
Pros include keeping detection and rewriting together so context is not lost, plus the ability to see the AI-likelihood score before committing to changes. Cons note the 0% strict simultaneous pass rate means workflows needing guaranteed clearance on multiple detectors will require extra manual steps, and deeper rewrites can alter cadence enough that subject-matter experts must re-check technical claims.
Who it is for / who should skip it
Best for teams that need humanized text for student drafts, marketing copy, or client edits and value the built-in score check. Skip it if a guaranteed clean score across multiple detectors is required without further revision.
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