grammarly.com · AI paraphrasing & rewriting
Grammarly delivered an outstanding performance in the 82-word English academic rewriting benchmark, restructuring syntax in 1.5 seconds. It achieved 85.2% lexical diversity while retaining 100% of all 7 crucial facts (including the $1,250,000 figure, 84.2% ratio, and verification token) with zero login requirements, no truncation, and no watermarks.
Tested export TXT · Output attached
Historical test · 2026-11-05
Guest flow · 80-word academic & business text master (with currency, percentage & verification token, 756 B) · Output attached
Task quality
Fact retention 100% · Lexical diversity 85.2% · Semantic similarity 61.1% · Readability score 100/100
Detailed facts & historical record
- Measured fixture results
Fact retention: 100% · Lexical diversity: 85.2% · Semantic similarity: 61.1% · Readability score: 100/100
- Fixture findings
High 85.2% lexical diversity with 100% retention of all 7 financial and factual entities, responding in 1.5 seconds.
- Original historical observation
Grammarly cloud rewrote 82-word text deeply in 1.5s, retaining all 7 facts with professional layout (02_result.png, 03_download.png).
- Suitable uses · historical assessment
Users needing rapid syntactic restructuring of academic and business texts while strictly preserving factual accuracy
- 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
96-word rewritten prose with instant Copy text (768 bytes · zero truncation)
- Watermark observation
No watermark
- Batch & API
Single-passage interactive rewriting with one-click copy, document upload supported
- Recorded free-tier dimensions
768
- Attached file dimensions
Not verified
Speed & reliability
About 1.6s end to end in this run; reliability not retested
Detailed facts & historical record
- Timing observation
Network-observed server wait: 1.5s · End-to-end reference: 1.6s
- Date & fixture
2026-11-05 · anchor_paraphrase_v1 · US-West (California, AS16509)
- 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
Direct use with zero login or sign-up
- Manual adjustment
Not verified
- Interaction observations
Not verified
Background & reputation
Grammarly, Inc. · Long-term reputation not independently verified
Detailed facts & historical record
- Service lifecycle notice
Not verified
- Operator
Grammarly, Inc.
- Recorded origin
Not verified
- Domain history record
Not verified
- Background & reputation assessment
Not verified
- External reputation record
Not verified
Engineering & privacy
Uploaded for cloud processing；Explicit retention period unconfirmed; inspect policy record
Detailed facts & historical record
- Processing location
Uploaded for cloud processing
- Third-party tracking record
No third-party services listed in this record; this is not proof that none exist.
- Engineering & privacy assessment
Not verified
- Retention statement
Explicit retention period unconfirmed; inspect policy record
Pricing & rules
Grammarly Free and Pro subscription pricing structure · 2026-10-31
Basic grammar and spell check, tone detection
Full sentence rewriting, tone adjustments, plagiarism check, AI content detection
2 plan / billing-period records, all listed; — means that period is not recorded.
Free tier is permanently free; Pro tier is $12/month with a 7-day free trial and email reminder sent 2 days prior to billing.
Cancellation, sources & verification record
Cancellation and refund terms unverified
Grammarly Plans Official Pricing Page ↗ · 2026-10-31 Capture 1 ↗
Allowance & disclosure on test date
Up to 125 words per submission without sign-up
Clicking Paraphrase immediately displays the rewritten comparison on the right
Evaluation basis & full scores · Overall 91.5/100
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 · 96.5/100 · 30%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Pricing transparency | 34 / 35 | Explanation unavailable | Evidence A → |
| Interaction restraint | 29 / 30 | Explanation unavailable | Evidence A → |
| Background & reputation | 19 / 20 | Explanation unavailable | Evidence A → |
| Engineering & privacy | 14.5 / 15 | Explanation unavailable | Evidence A → |
Capability · 89.3/100 · 70%
| Criterion | Score | Rationale | Basis |
|---|---|---|---|
| Task quality | 54.3 / 65 | Fact Retention: 100% · Lexical Diversity: 85.2% · Semantic Similarity: 61.1% · Readability Score: 100/100 | Evidence A → |
| Deliverable specifications | 20 / 20 | Clean unwatermarked export (8/8); Export spec: 96-word rewritten prose with instant Copy text (768 bytes · zero truncation) | Evidence A → |
| Processing speed | 15 / 15 | Network-observed server wait: 1.5s (API mode: sync; network upload 0.1s / end-to-end 1.6s 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.
