Grammarly, Inc. · Writing
Grammarly checks grammar, clarity, and tone across the web and now offers generative AI assistance.
Pricing
Free - $12/month
Trust 93
Writing
Copyleaks
Copyleaks detects plagiarism and AI-generated content across languages with enterprise and LMS integrations.
What’s good
- Multilingual detection
- LMS and API integrations
- Plagiarism and AI in one
Where it falls down
- Credit-based pricing
- Detection probabilistic
Runs on
webapi
Built for
educationenterprise
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Cost against price
Copyleaks costs $9.99. What does it cost to run?
We do not know which model Copyleaks runs on, so here is the range. One seat doing the light workload, on the cheapest, middlemost and dearest models in the index.
| If it runs on | Model | Model cost | Left of $9.99 |
|---|---|---|---|
| Cheapest priced model | Qwen 3.7 Flash | $0.13 | $9.86 (99%) |
| Middle of the range | Gemini 3.1 Pro | $11 | $-0.57 (-6%) |
| Dearest priced model | Claude Fable 5 | $48 | $-38.01 (-380%) |
A model, not an audit. This is what the intelligence would cost at that shape of work, not what Copyleaks pays: we do not know its model, its real usage or what it has negotiated, and the figures exclude caching, batching and volume discounts. What the gap is worth is the product, and that is the thing to judge.
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