QuillBot · AI content detection
QuillBot, widely adopted by tens of millions of writers globally, demonstrates outstanding diagnostic precision and rapid turnaround with its AI Content Detector. Against our 90-word benchmark AI sample, the v7.1.0 cloud engine completed inference in 1.03s, delivering a calibrated 100.0% AI score alongside sentence-level highlighting and stylistic attribution. With full guest readability on results and registration only needed for PDF downloads, it represents a top-tier detection utility.
US-West (California, AS2914)
JSON · Output attached · Open native file ↗
Subsequent pricing and service checks are shown separately without altering historical scores.
One run does not establish all complex scenes, untested paid maxima or long-term uptime.
Plans & historical pricing
QuillBot Free and Premium annual pricing structure · 2026-10-31
Text rewriting, basic grammar proofreading, summarizer, citation generator
Unlimited words, advanced suggestions, tone analysis, faster processing；Displays only equivalent $8.33 USD/mo billed annually without explicit annual total
2 plan / billing-period records, all listed; — means that period is not recorded.
Annual tier displays $8.33 USD per month billed annually (58% off) without explicit annual invoice total; annual amount remains null and unverified. Free tier is permanently free with 100-word limit.
Verification has gaps; unknown prices and quotas are not inferred.
Cancellation, sources & verification record
Cancellation and refund terms unverified
QuillBot Premium Official Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Pricing recorded on the test date · 2026-11-03
Free
Freemium + Premium subscription
Historical context only; not current purchase guidance.
Delivery & access
- Free delivery record
- Not recorded or not verified
- Watermark
- Not recorded or not verified
- Free allowance
- Not recorded or not verified
- Account requirements
- Not recorded or not verified
- Maximum specification record
- Overall AI probability verdict + sentence attribution and trigger analysis (Technical language, Overly polished)
May include advertised capabilities; this does not establish a tested paid tier.
- Batch & API
- Not recorded or not verified
- Manual refinement
- Not recorded or not verified
Tested result & sample
Not recorded or not verified
- Fixture
- anchor_aidetector_v1
- Recorded environment
- US-West (California, AS2914)
- Network-observed server wait
- 1.03 s
- End-to-end reference
- 1.03 s
Network wait includes round trips, queuing and polling error, not pure inference time. Local timings depend on the device; repetition counts are not standardized in legacy records.
Experience, rules & trust
- Disclosure
- Not recorded or not verified
- Interaction
- Not recorded or not verified
- Entity record
- Learneo, Inc. (Quillbot Division)
- Origin
- Not recorded or not verified
- Domain history record
- Not recorded or not verified
- Third-party tracking record
- Google Analytics · Datadog · Cloudflare
- External information
- Not recorded or not verified
- Processing
- Not recorded or not verified
- Retention statement
- Not recorded or not verified
A recorded statement does not verify deletion or all data-processing behavior.
Verifiable audit trail & evidence
Four SHA-256-verified stages link the benchmark fixture, same-run interface screenshots, native exported artifact and archived pricing sources.
anchor_aidetector_v1 · Inspect fixture & file inspector →
Captures entry rules, result view and export disclosure.
Screenshots, native output and official claims support different conclusions. Evidence grades are not product safety certifications.
Evaluation basis & full scores · Overall 97/100
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 · 90/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 33 / 35 | Explanation unavailable | Evidence A → |
| Interaction restraint | 26 / 30 | Explanation unavailable | Evidence A → |
| Background & reputation | 18 / 20 | Explanation unavailable | Evidence A → |
| Engineering & privacy | 13 / 15 | Explanation unavailable | Evidence A → |
Capability · 100/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 65 / 65 | AI Probability: 100% · Human Probability: 0% · Label: ai · Calibrated: Yes | Evidence A → |
| Deliverable specifications | 20 / 20 | Clean unwatermarked export (8/8); Export spec: Overall AI probability verdict + sentence attribution and trigger analysis (Technical language, Overly polished) | Evidence A → |
| Processing speed | 15 / 15 | Network-observed server wait: 1.03s (API mode: sync_json_verified; network upload 0s / end-to-end 1.03s 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.
Revisions & corrections
- 2026-11-03
Completed real-machine benchmark evaluation and 3-node screenshot verification under RealTest Protocol v2.3.