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GPTZero vs heal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GPTZero compared with heal
DetailGPTZero logo GPTZeroheal logo heal
What it doesAI detector that identifies content generated by large language models Finds reproducible bugs and runtime vulnerabilities by running your product in a production-like sandbox
StageNot given Not given
Founded2023 Not given
Based inNot given FR
Pricing modelFreemium Free trial
PricingFree tier for basic AI detection up to 10,000 characters. Professional plan available with pricing details on subscription page. API pricing available for developers. Free for open source projects. Paid plans available for commercial use; specific pricing not listed.
Key features
  • AI detection with 99.9% accuracy
  • Sentence-by-sentence highlighting of AI-generated text
  • Writing Replay showing video proof of writing process
  • Plagiarism detection
  • Grammar checking and writing feedback
  • Chrome extension for browser-based scanning
  • Integration with Canvas and Google Classroom
  • API for developer integration
  • Detects multiple AI models including GPT-5, GPT-6, Gemini, and Claude
  • AI Tutor for writing improvement
  • Builds a sandbox that replicates production environment
  • Mocks or emulates third-party services like payments, mail and APIs
  • Provides failing test for every defect found
  • Maps product architecture and reads code for suspicions
  • Validates security issues with real exploits against sandbox
  • Crawls every link and finds missing routes
  • Runs locally or in the cloud
What makes it different
  • 99.9% accuracy rate verified by independent benchmarks from Penn State's AI Research Lab
  • De-biased for ESL learners with only 1% false positive rate for non-native English writing
  • Only detector with Writing Replay showing video proof of authentic writing process
  • Trusted by over 10 million users and 100+ organizations globally
  • Catches bugs code review misses by running the actual product instead of just reading diffs
  • Every bug comes with a reproducible failing test that proves it
  • Finds runtime vulnerabilities by firing real exploits against the sandbox
  • Tests untested integrations and hard-to-mock async services
  • Free for open source projects
Community votes00
DR (Domain Rating by Ahrefs)81 no change since last check22 no change since last check
Trust Flow (Majestic)279
Citation Flow (Majestic)4327
Referring domains (Majestic)838763

5 details filled in for both companies.

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