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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | zerogpt.com | hemingwayapp.com | Switch / compare |
|---|---|---|---|
| AI paraphrasing & rewriting | 87/100 TXT · Output attached | 65/100 TXT · Output attached | Active task |
| AI content detection | 96/100 JSON · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | ZeroGPT AI paraphrasing & rewriting 87/100 Seven-aspect task score Anonymous instant rewriting up to 300 words per scan, finishing cloud inference in 5.83s with 100% fact/token retention, 80.7% lexical diversity, and multi-color change highlights. Tested export TXT · Output attached Historical test · 2026-11-05 | Hemingway Editor AI paraphrasing & rewriting 65/100 Seven-aspect task score Hemingway Editor (Boondoggle Studio, LLC) is famed for color-coded readability grading and offers a free online AI paraphraser. In testing, its cloud API is fast (1.31s server wait) and produces fluent phrasing with one-click copying; however, the free tool imposes strict output truncation (cutting off mid-sentence at word 17), dropping key data points and tokens, positioning it primarily as a short-sentence teaser for Hemingway Editor Plus. Tested export TXT · Output attached Historical test · 2026-11-01 |
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| Pricing & rules | ||
| Pricing plans | ZeroGPT Free, Pro, Plus, and Max personal subscription pricing structure · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ USD 0/month — Monthly 15,000 characters per scan, 1,250,000 words/mo allowance, 300 words one-time plagiarism check Basic AI detection and text analysis PRO (Monthly)2026-10-31 ↗ USD 14.99/month — Monthly 100,000 chars per scan, 50 batch files, 4.5M words/mo, ad-free experience, PDF reports Ad-free AI detection, PDF report export, thinking mode paraphraser & summarizer PLUS (Monthly)2026-10-31 ↗ USD 21.99/month — Monthly 100,000 chars per scan, 60 batch files, 5M words/mo, 35,000 words/mo plagiarism All PRO features, AI video detector, monthly plagiarism allowance MAX (Monthly)2026-10-31 ↗ USD 30.99/month — Monthly 150,000 chars per scan, 75 batch files, 7.5M words/mo, 60,000 words/mo plagiarism All PLUS features, unlimited paraphrase modes, ZeroCHAT-5 access PRO (Annual)2026-10-31 ↗ — USD 107.88/year Annual $107.88 billed annually ($8.99/mo equivalent), all PRO features included PRO tier annual features PLUS (Annual)2026-10-31 ↗ — USD 167.88/year Annual $167.88 billed annually ($13.99/mo equivalent), all PLUS features included PLUS tier annual features MAX (Annual)2026-10-31 ↗ — USD 239.88/year Annual $239.88 billed annually ($19.99/mo equivalent), all MAX features included MAX tier annual features 7 plan / billing-period records, all listed; — means that period is not recorded. Verified monthly rates: Pro $14.99/mo, Plus $21.99/mo, Max $30.99/mo; explicit annual upfront invoice totals: Pro $107.88/yr ($8.99/mo), Plus $167.88/yr ($13.99/mo), Max $239.88/yr ($19.99/mo); Free tier provides 15k chars/scan and 1.25M words/mo. Cancellation, sources & verification recordCancellation and refund terms unverified ZeroGPT Official Pricing Page (Annual View) ↗ · 2026-10-31 Capture 1 ↗ ZeroGPT Official Pricing Page (Monthly View) ↗ · 2026-10-31 Capture 1 ↗ | Hemingway Editor free web editor and Plus subscription pricing tiers · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Web Editor2026-10-31 ↗ Free Free Free Unlimited readability grade level scoring, multi-color highlighting for wordy sentences, passive voice, and adverbs without login Basic readability scoring and syntactic highlighting Individual 5K (Monthly)2026-10-31 ↗ USD 25/month — Monthly 5,000 AI sentence rewrites/month, unlimited advanced grammar fixes, tone & style adjustments, file import/export AI sentence rewriting and advanced grammar editing Individual 5K (Annual)2026-10-31 ↗ — USD 100/year Annual Billed annually at $100.00 ($8.33/mo equivalent), 5,000 AI sentence rewrites/month, unlimited grammar fixes AI sentence rewriting and advanced grammar editing Individual 10K (Monthly)2026-10-31 ↗ USD 30/month — Monthly 10,000 AI sentence rewrites/month, unlimited advanced grammar fixes, document review & feedback High volume AI sentence rewriting and grammar editing Individual 10K (Annual)2026-10-31 ↗ — USD 150/year Annual Billed annually at $150.00 ($12.50/mo equivalent), 10,000 AI sentence rewrites/month High volume AI sentence rewriting and grammar editing 5 plan / billing-period records, all listed; — means that period is not recorded. Web readability editor is 100% free with no sign-up; Plus features include a 2-week trial without credit card; monthly rates are Individual 5K $25/mo, Individual 10K $30/mo; annual plans explicitly invoice $100/yr ($8.33/mo equiv) and $150/yr ($12.50/mo equiv). Cancellation, sources & verification recordCancellation and refund terms unverified Hemingway Editor Plus Pricing Table (Annual) ↗ · 2026-10-31 Capture 1 ↗ Hemingway Editor Plus Pricing Table (Monthly) ↗ · 2026-10-31 Capture 1 ↗ |
| Free & trial allowance on the test date | 300 words per scan free; paid tiers expand to 10k words and unlimited modes | Free guest usage for basic paraphrasing; unlimited usage requires Hemingway Editor Plus |
| Cancellation & refunds | Not verified | Not verified |
| Disclosure of costs & limits | Results displayed immediately in workspace with one-click copy | Not verified |
| Task quality | ||
| Measured fixture results | Fact retention: 100% · Lexical diversity: 80.7% · Semantic similarity: 55.3% · Readability score: 100/100 | Fact retention: 0% · Lexical diversity: 98.9% · Semantic similarity: 12% · Readability score: 55/100 |
| Fixture findings | 100% retention across all 7 facts and security token, natural syntax rephrasing, 100% readability score, and fully usable without login. | Lexical variety is high and fluent, but output truncation mid-sentence prevented full factual preservation. |
| Original historical observation | Input 80-word standard paraphrase anchor fixture (anchor_paraphrase_v1/input.txt); ZeroGPT returned 93-word rewritten text in 5.83s, retaining 100% of facts including REALTEST-PARAPHRASE-VERIFIED-2026, $1,250,000, and 84.2% with 80.7% lexical diversity. | Input standard 82-word benchmark text; clicking 'Paraphrase my text' returned result in 1.31s; output was truncated at word 17 ('while enh') without retaining verification token; copyable. |
| Suitable uses · historical assessment | Not verified | Not verified |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | TXT · Output attached · No watermark in test | TXT · Output attached · Check watermark record |
| Historical specification note · not an official maximum | Full 5-paragraph rewritten text + 3-color highlights + statistics card | Free tier output truncated around 17 words (cut off mid-sentence) |
| Watermark observation | No watermark | Not verified |
| Batch & API | Not verified | Not verified |
| Recorded free-tier dimensions | 0.7 | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 5.83s · End-to-end reference: 6.49s | Network-observed server wait: 1.31s · End-to-end reference: 1.31s |
| Date & fixture | 2026-11-05 · anchor_paraphrase_v1 · US-West (California, AS2914) | 2026-11-01 · anchor_paraphrase_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | Not verified |
| Sign-in methods | Anonymous rewriting supported; Google OAuth and email sign-in for accounts | Web tool requires zero login; Plus supports Google OAuth or email |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Direct anonymous rewriting on homepage without popup barriers; presence of banner advertisements around workspace. | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Olive Works LLC | Boondoggle Studio, LLC |
| Recorded origin | Wyoming, USA | Not verified |
| Domain history record | Operating since January 2023 | Not verified |
| Background & reputation assessment | Operated by Olive Works LLC in Wyoming; massive global traffic, though debated in academia regarding false positive thresholds. | Not verified |
| External reputation record | Globally popular AI text detector and paraphraser widely adopted across students and content creators. | Not verified |
| Engineering & privacy | ||
| Processing location | Processing location unconfirmed | Uploaded for cloud processing |
| Third-party tracking record | Google Analytics · Cloudflare | Google Analytics · Stripe · Cloudflare Turnstile |
| Engineering & privacy assessment | Secured via Cloudflare and TLS 1.3; privacy terms state texts are processed for instant analysis and not repurposed for foundation model training. | Not verified |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 35 / 35 Free tier allows 300 words per scan; paid plans Pro ($14.99/mo or $107.88/yr), Plus ($21.99/mo or $167.88/yr), and Max ($30.99/mo or $239.88/yr) provide 10k words with clear upfront billing. | |
| Interaction restraint | 24 / 30 Direct anonymous rewriting on homepage without popup barriers; presence of banner advertisements around workspace. | |
| Background & reputation | 15 / 20 Operated by Olive Works LLC in Wyoming; massive global traffic, though debated in academia regarding false positive thresholds. | |
| Engineering & privacy | 14 / 15 Secured via Cloudflare and TLS 1.3; privacy terms state texts are processed for instant analysis and not repurposed for foundation model training. | |
| Task quality | 52.2 / 65 Fact Retention: 100% · Lexical Diversity: 80.7% · Semantic Similarity: 55.3% · Readability Score: 100/100 | 22 / 65 Fact Retention: 0% · Lexical Diversity: 98.9% · Semantic Similarity: 12% · Readability Score: 55/100 |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: Full 5-paragraph rewritten text + 3-color highlights + statistics card | 16 / 20 Clean unwatermarked export (8/8); Export spec: Free tier output truncated around 17 words (cut off mid-sentence) |
| Processing speed | 15 / 15 Network-observed server wait: 5.83s (API mode: sync_json_verified; network upload 0s / end-to-end 6.49s shown for reference only, never penalized) | 15 / 15 Network-observed server wait: 1.31s (API mode: sync_json_verified; network upload 0s / end-to-end 1.31s shown for reference only, never penalized) |
