Undetectable AI
Leading AI content detection, evasion, and adversarial text humanization platform developed by Undetectable Inc. (2 benchmarked capabilities: AI content detection, AI paraphrasing & rewriting)
Product node overview & trust baseline
Operator provenance, privacy baseline and site-wide pricing belong directly to the product node and are inherited across linked task edgesUndetectable AI, operated by Undetectable Inc. (Sheridan, Wyoming, United States) under a "Free tier + subscription" model, has 2 published task assessments on RealTest (AI content detection 95/100, AI paraphrasing & rewriting 81/100). In ai content detection, undetectable AI provides multi-model AI content detection and text humanization. During testing, its detection engine accurately classified the AI benchmark sample at 99% AI probability within 0.57s with full sentence breakdown and native PDF export, delivering exceptional detection accuracy and seamless workflow. In ai paraphrasing & rewriting, undetectable AI's Humanizer specializes in adversarial humanization and paraphrasing. During testing, its base model completed rewriting in 0.76s with 92.0% lexical diversity while preserving the verification token and critical numeric facts, supporting free guest usage and one-click clipboard export.
Sheridan, Wyoming, United States · Founded in 2023
Provenance baseline: 16/20 · Registered US entity Undetectable Inc. with wide media recognition, though adversarial detection evasion carries academic ethics controversies.
Annual plan cards explicitly show the upfront invoice total (e.g. 10K words charged annually $60.00 at $5.00/mo equivalent) alongside monthly original rates ($9.99/mo); free trial is capped at 250 words.
Pricing transparency baseline: 32/35 · Cancellation:
Complies with Undetectable AI Privacy Policy and Terms of Use; user inputs processed via cloud models with encryption commitments
Stripe · Google Analytics · Cloudflare
Product-level pricing & rules baseline
Verified plans, billing periods and cancellation terms owned by this product node; task-specific credit costs and free export limits are detailed per capability edge belowUndetectable AI Free Trial, Monthly, and Annual word-quota subscription plans · 2026-10-31
Basic AI detection and humanization trial
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
6 plan / billing-period records, all listed; — means that period is not recorded.
Annual plan cards explicitly show the upfront invoice total (e.g. 10K words charged annually $60.00 at $5.00/mo equivalent) alongside monthly original rates ($9.99/mo); free trial is capped at 250 words.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Undetectable AI Official Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Archived official pricing sources: Undetectable AI Official Pricing Page (2026-10-31) [text snapshot ↗]
Capability map & linked task edges
Whenever a capability passes fixed-fixture testing, an edge is automatically linked between this product node and the task topic for horizontal comparison.
| Linked task edge | Score | Assessment · historical test | Test scope & delivery | Inspect capability / follow edge |
|---|---|---|---|---|
| AI paraphrasing & rewriting | 81/100 | Undetectable AI's Humanizer specializes in adversarial humanization and paraphrasing. During testing, its base model completed rewriting in 0.76s with 92.0% lexical diversity while preserving the verification token and critical numeric facts, supporting free guest usage and one-click clipboard export. | TXT · Output attached Historical test · 2026-11-04 Guest flow · 80-word academic & business text master (with currency, percentage & verification token, 756 B) · Output attached | |
| AI content detection | 95/100 | Undetectable AI provides multi-model AI content detection and text humanization. During testing, its detection engine accurately classified the AI benchmark sample at 99% AI probability within 0.57s with full sentence breakdown and native PDF export, delivering exceptional detection accuracy and seamless workflow. | PDF · Output attached Historical test · 2026-11-04 Guest flow · Calibrated AI vs human text benchmark (literature master & LLM prose, 780 B) · Output attached |
Tested task edges (with scores and native artifacts) are strictly separated from discovered untested capabilities (unscored).
Peer product comparison across shared task edges
Matched by overlapping tested task edges; compare site-wide billing models alongside per-task benchmark scoresVerified monthly rates: Starter $12.99/mo, Premium $19.99/mo; annual plan cards show monthly equivalents ($10/mo, $16/mo) without explicit annual invoice total; annual plans kept unverified.
- AI paraphrasing & rewriting：Undetectable AI 81/100 vs Smodin 82/100
- AI content detection：Undetectable AI 95/100 vs Smodin 91/100
Verified monthly rates: Starter $20/mo, Plus $50/mo, Pro $100/mo; annual plans explicitly show invoice totals: Starter $200/yr ($16.67/mo equiv), Plus $500/yr, Pro $1000/yr; Free tier provides 10 humanizations/day and 10 AI scans/day.
- AI paraphrasing & rewriting：Undetectable AI 81/100 vs StealthWriter 87/100
- AI content detection：Undetectable AI 95/100 vs StealthWriter 96/100
Verified monthly rates: Personal $16.99/mo, Pro $99.99/mo; explicit annual upfront invoice totals: Personal $167.88/yr ($13.99/mo), Pro $899.88/yr ($74.99/mo); extra unified credits available for top-up.
- AI content detection：Undetectable AI 95/100 vs Copyleaks 94/100
Free tier covers basic notepad and 1,200 words per submission; Basic is $79/yr ($6.58/mo, 1.8M credits), Starter is $129/yr ($10.75/mo, 3.6M credits), Pro is $249/yr ($20.75/mo, 9M credits).
- AI paraphrasing & rewriting：Undetectable AI 81/100 vs Editpad (iLoveNote) 88/100
Linked capability test: AI paraphrasing & rewriting
2026-11-04 · Native output attached. Findings cover the recorded fixture and conditions; paid specifications may be untested.
Verified native export & same-run screenshot evidence
Open native exported file (TXT · Output attached) ↗
Task quality
Fact retention 85.7% · Lexical diversity 92% · Semantic similarity 29.3% · Readability score 65/100
Detailed facts & historical record
- Measured fixture results
Fact retention: 85.7% · Lexical diversity: 92% · Semantic similarity: 29.3% · Readability score: 65/100
- Fixture findings
Achieved 92.0% lexical diversity while accurately preserving the verification token and core financial figures, exporting 168 words of complete text without truncation.
- Original historical observation
Input 87-word standard paraphrase fixture (anchor_paraphrase_v1/input.txt); Undetectable AI delivered structural rewriting (168 words, 92.0% lexical diversity) while retaining REALTEST-PARAPHRASE-VERIFIED-2026, $1,250,000, and 84.2%.
- Suitable uses · historical assessment
Not verified
- Result & output evidence
Delivery capabilities
TXT · Output attached · No watermark in test
Detailed facts & historical record
- Recorded export specifications
TXT · Output attached · No watermark in test
- Historical specification note · not an official maximum
Side-by-side visual diff highlighting + complete one-click copy
- Watermark observation
No watermark
- Batch & API
Not verified
- Recorded free-tier dimensions
1
- Attached file dimensions
Not verified
Speed & reliability
About 0.76s end to end in this run; reliability not retested
Detailed facts & historical record
- Timing observation
Network-observed server wait: 0.76s · End-to-end reference: 0.76s
- Date & fixture
2026-11-04 · anchor_paraphrase_v1 · US-West (California, AS2914)
- Repeated tests & reliability
No standardized repetition count, success rate or variability range is recorded.
Interaction experience
No login in this run
Detailed facts & historical record
- Account requirements
No login in this test
- Sign-in methods
Guest mode supports basic model; advanced models require subscription
- Manual adjustment
Not verified
- Interaction observations
Direct paste and rewrite workflow; free queue does not require login, and rewritten output copies with a single click without intrusive ads.
Background & reputation
Undetectable AI · Long-term reputation not independently verified
Detailed facts & historical record
- Service lifecycle notice
Not verified
- Operator
Undetectable AI
- Recorded origin
Florida / New York, USA
- Domain history record
Operating since 2023
- Background & reputation assessment
Registered US entity Undetectable Inc. with wide media recognition, though adversarial detection evasion carries academic ethics controversies.
- External reputation record
Well-known AI detection and humanization platform widely discussed across developer and content creator communities.
Engineering & privacy
Processing location unconfirmed；Explicit retention period unconfirmed; inspect policy record
Detailed facts & historical record
- Processing location
Processing location unconfirmed
- Third-party tracking record
Google Analytics · Cloudflare · Hotjar · Meta Pixel
- Engineering & privacy assessment
Protected by TLS 1.3 and Cloudflare security with clear privacy terms.
- Retention statement
Explicit retention period unconfirmed; inspect policy record
Task free allowance & pricing disclosure
Basic model free without login; advanced model requires subscription
Queue notification on submission followed by immediate result display
Site-wide plans belong to the product node (see Product-level pricing baseline ↑).
Expand site-wide plans aligned for AI paraphrasing & rewriting (6 records)
Undetectable AI Free Trial, Monthly, and Annual word-quota subscription plans · 2026-10-31
Basic AI detection and humanization trial
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
6 plan / billing-period records, all listed; — means that period is not recorded.
Annual plan cards explicitly show the upfront invoice total (e.g. 10K words charged annually $60.00 at $5.00/mo equivalent) alongside monthly original rates ($9.99/mo); free trial is capped at 250 words.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Undetectable AI Official Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Evaluation basis & full scores · Overall 80.6/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_paraphrase_v1
Honesty & reputation · 89/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 32 / 35 | Pricing transparently lists monthly rates, annual monthly equivalents, and exact upfront annual totals ($60.00, $114.00, $189.00); free trial available without mandatory card binding. | Evidence A → |
| Interaction restraint | 27 / 30 | Direct paste and rewrite workflow; free queue does not require login, and rewritten output copies with a single click without intrusive ads. | Evidence A → |
| Background & reputation | 16 / 20 | Registered US entity Undetectable Inc. with wide media recognition, though adversarial detection evasion carries academic ethics controversies. | Evidence A → |
| Engineering & privacy | 14 / 15 | Protected by TLS 1.3 and Cloudflare security with clear privacy terms. | Evidence A → |
Capability · 77/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 46 / 65 | Fact Retention: 85.7% · Lexical Diversity: 92% · Semantic Similarity: 29.3% · Readability Score: 65/100 | Evidence A → |
| Deliverable specifications | 16 / 20 | Clean unwatermarked export (8/8); Export spec: Side-by-side visual diff highlighting + complete one-click copy | Evidence A → |
| Processing speed | 15 / 15 | Network-observed server wait: 0.76s (API mode: sync_json_verified; network upload 0s / end-to-end 0.76s shown for reference only, never penalized) | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Linked capability test: AI content detection
2026-11-04 · Native output attached. Findings cover the recorded fixture and conditions; paid specifications may be untested.
Verified native export & same-run screenshot evidence
Open native exported file (PDF · Output attached) ↗
Task quality
AI probability 99% · Human probability 1% · Classification label AI-generated · Confidence calibrated Yes
Detailed facts & historical record
- Measured fixture results
AI probability: 99% · Human probability: 1% · Classification label: AI-generated · Confidence calibrated: Yes
- Fixture findings
Achieved 99% AI detection accuracy with complete sentence highlighting on the benchmark fixture, exporting a native 6.8 KB PDF report in full alignment with ground truth.
- Original historical observation
Input 90-word standard AI anchor fixture (anchor_aidetector_v1/benchmark_sample.txt); Undetectable AI returned 99% AI / GPT probability verdict with sentence highlighting and native PDF export (6.8 KB).
- Suitable uses · historical assessment
Not verified
- Result & output evidence
Delivery capabilities
PDF · Output attached · No watermark in test
Detailed facts & historical record
- Recorded export specifications
PDF · Output attached · No watermark in test
- Historical specification note · not an official maximum
Full 99% AI probability + sentence highlights + native PDF deliverable
- Watermark observation
No watermark
- Batch & API
Not verified
- Recorded free-tier dimensions
6.8
- Attached file dimensions
Not verified
Speed & reliability
About 0.57s end to end in this run; reliability not retested
Detailed facts & historical record
- Timing observation
Network-observed server wait: 0.57s · End-to-end reference: 0.57s
- Date & fixture
2026-11-04 · anchor_aidetector_v1 · US-West (California, AS2914)
- Repeated tests & reliability
No standardized repetition count, success rate or variability range is recorded.
Interaction experience
No login in this run
Detailed facts & historical record
- Account requirements
No login in this test
- Sign-in methods
Free guest testing supported; Google OAuth and email sign-in
- Manual adjustment
Not verified
- Interaction observations
Direct paste and check workflow with one-click clear and PDF export; zero intrusive popups obstructing detection.
Background & reputation
Undetectable AI · Long-term reputation not independently verified
Detailed facts & historical record
- Service lifecycle notice
Not verified
- Operator
Undetectable AI
- Recorded origin
Florida / New York, USA
- Domain history record
Operating since 2023
- Background & reputation assessment
Registered US entity Undetectable Inc. with wide media recognition, though adversarial detection evasion carries academic ethics controversies.
- External reputation record
Well-known AI detection and humanization platform widely discussed across developer and content creator communities.
Engineering & privacy
Processing location unconfirmed；Explicit retention period unconfirmed; inspect policy record
Detailed facts & historical record
- Processing location
Processing location unconfirmed
- Third-party tracking record
Google Analytics · Cloudflare · Hotjar · Meta Pixel
- Engineering & privacy assessment
Protected by TLS 1.3 and Cloudflare security with clear privacy terms.
- Retention statement
Explicit retention period unconfirmed; inspect policy record
Task free allowance & pricing disclosure
Free trial 250 words; paid subscriptions from 10K words/mo
Results and probabilities displayed instantly in-page
Site-wide plans belong to the product node (see Product-level pricing baseline ↑).
Expand site-wide plans aligned for AI content detection (6 records)
Undetectable AI Free Trial, Monthly, and Annual word-quota subscription plans · 2026-10-31
Basic AI detection and humanization trial
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
AI content detection and text humanization
6 plan / billing-period records, all listed; — means that period is not recorded.
Annual plan cards explicitly show the upfront invoice total (e.g. 10K words charged annually $60.00 at $5.00/mo equivalent) alongside monthly original rates ($9.99/mo); free trial is capped at 250 words.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Undetectable AI Official Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Evaluation basis & full scores · Overall 95.3/100
Overall = honesty & reputation × 30% + capability × 70%. Component maxima follow this report’s rubric. List scores are rounded for display; original precision is retained here.
Scoring version 2.3.1 · Test fixture anchor_aidetector_v1
Honesty & reputation · 89/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 32 / 35 | Pricing transparently lists monthly rates, annual monthly equivalents, and exact upfront annual totals ($60.00, $114.00, $189.00); free trial limited to 250 words. | Evidence A → |
| Interaction restraint | 27 / 30 | Direct paste and check workflow with one-click clear and PDF export; zero intrusive popups obstructing detection. | Evidence A → |
| Background & reputation | 16 / 20 | Registered US entity Undetectable Inc. with wide media recognition, though adversarial detection evasion carries academic ethics controversies. | Evidence A → |
| Engineering & privacy | 14 / 15 | Protected by TLS 1.3 and Cloudflare security with clear privacy terms. | Evidence A → |
Capability · 98/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 65 / 65 | AI Probability: 99% · Human Probability: 1% · Label: ai · Calibrated: Yes | Evidence A → |
| Deliverable specifications | 18 / 20 | Clean unwatermarked export (8/8); Export spec: Full 99% AI probability + sentence highlights + native PDF deliverable | Evidence A → |
| Processing speed | 15 / 15 | Network-observed server wait: 0.57s (API mode: sync_json_verified; network upload 0s / end-to-end 0.57s shown for reference only, never penalized) | Evidence A → |
Legacy scores may include advertised maximum capabilities. Read tested output separately from paid capabilities. Records without matching tiers and scope are not ranked together.
Developer & citation kit · Claim updates, request benchmarks & embed verified badges
Product developers and writers can embed these SVG badges in official websites, GitHub READMEs or documentation, or use the channels below to sync product-wide plans and capabilities.
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