Side-by-side comparison · Writing & Translation
Copyleaks vs Google Translate vs GPTZero
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Schools, publishers and businesses that need AI and plagiarism checks together, especially across several languages.
Pick it if: Anyone who needs a quick, free translation, from travellers reading a menu to small businesses answering an overseas customer.
Pick it if: Teachers, editors and business owners who want a second opinion on whether writing they've been handed came from AI.
Overview
| Attribute | Copyleaks | Google Translate | GPTZero |
|---|---|---|---|
| In one line | Checks text for AI writing and plagiarism in one scan, in over 30 languages. | Free translation of text, documents, photos and conversations in 240+ languages. | Checks whether text was written by AI, with plagiarism and citation checks too. |
| Pricing model | Freemium | Free | Freemium |
| Starting price | $0 | Pay per character | $0 |
| Free plan | Yes | Yes | Yes |
| Works with Claude Code | Yes | Yes | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Copyleaks | Google Translate | GPTZero |
|---|---|---|---|
| Overall rating | 3.9 | 4.5Winner | 4.2 |
| Ease of useHow quickly someone non-technical gets value from it. | 4.0 | 5.0 | 4.5 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.5 | 4.5 | 4.5 |
| Output qualityHow good the results are before you fix them. | 3.5 | 3.5 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.5 | 5.0 | 4.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 4.5 | 4.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Copyleaks | Google Translate | GPTZero |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | Yes | Yes |
| Mobile app | No | Yes | No |
| Desktop app | – | No | – |
| Browser extension | Yes | Yes | Yes |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | No | Yes |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | Yes | No | No |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | Yes | – |
| Makes images | No | No | No |
| Makes video | No | No | No |
| Writes code | No | No | No |
| Runs agents or automations | No | No | No |
| Learns your brand or style | – | No | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 10/ 17 | 9/ 17 | 8/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Copyleaks | Google Translate | GPTZero |
|---|---|---|---|
| Plans | Free $0 Quick one-off checks. | Google TranslateOur pick Free Everyone. | Free $0 Checking the odd document. |
PersonalOur pick $16.99/mo, or $13.99/mo billed yearly Individuals checking work regularly. | Cloud Translation API Pay per character, with a free monthly allowance Developers adding translation to an app or website. | PremiumOur pick $23.99/mo, or $12.99/mo billed yearly Teachers and editors checking work every week. | |
Pro $99.99/mo, or $74.99/mo billed yearly Teams and agencies. | Professional $45.99/mo, or $24.99/mo billed yearly Agencies and heavy users scanning lots of files. | ||
Enterprise and Education Custom Companies and schools at scale. | Team Professional price per seat, 2 seats minimum Schools and businesses buying for a group. | ||
| Which plan to pick | Try the free checker first. Personal covers about 100 pages a month, which suits most individuals. Only move to Pro if a team needs seats or you want website scans. One credit covers 250 words or one image. | Use the free app and website. Only look at the Cloud Translation API if you're building translation into your own website or system. | Start on Free. If you check more than a few documents a week, Premium on yearly billing is the sweet spot. Professional only makes sense if you scan big batches of files. |
Key features
| Attribute | Copyleaks | Google Translate | GPTZero |
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Pros and cons
| Attribute | Copyleaks | Google Translate | GPTZero |
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Who each one is for
| Attribute | Copyleaks | Google Translate | GPTZero |
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Questions people ask
Which is better, Copyleaks, Google Translate or GPTZero?
Google Translate scores highest overall in our ratings (Copyleaks 3.9/5, Google Translate 4.5/5 and GPTZero 4.2/5). Copyleaks is best for AI and plagiarism checks in one report and checking content in languages other than English. Google Translate is best for quick translations of emails and messages and reading signs and menus with your camera. GPTZero is best for checking essays and assignments for AI writing and screening freelance or agency content.
Which is cheaper, Copyleaks, Google Translate or GPTZero?
Copyleaks: There's a free plan, and paid plans start at $0. Google Translate: There's a free plan, and paid plans start at Pay per character. GPTZero: There's a free plan, and paid plans start at $0.
Which is easier to use, Copyleaks, Google Translate or GPTZero?
Google Translate rates highest for ease of use in our scores. Anyone who needs a quick, free translation, from travellers reading a menu to small businesses answering an overseas customer.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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