GPTZero
AI Detector
VS
Grok
AI assistant by xAI for chat, creation, and real-time answers.
Popularity
GPTZero8,777
Grok13,737
Pricing
FreemiumGPTZero
FreemiumGrok
Features
4
GPTZero
vs
5
Grok
Our verdict
Grok is significantly more popular in terms of media coverage and engagement.
Detailed comparison
Criteria
GPTZero
Grok
Pricing
Freemium
Freemium
Plans & pricing
Free: Free
Free Tier (Basic): Free, X Premium: $8/mo, SuperGrok Lite: $10/mo, SuperGrok: $25/mo, X Premium+: $30/mo, SuperGrok Heavy: $250/mo, Grok Business: $30/mo, Enterprise: Custom
Free trial
No
Yes
Audience
b2c
b2c
Platforms
Web, Api, Cloud-computing
Web, Ios, Android, Api
API
Yes
Yes
Open Source
Proprietary
Open Source
Integrations
Zapier, Google-docs, Google-classroom, Canvas, Google-slides, Google-forms, Google-sheets, Google-drive, Gmail, Typeform, Greenhouse, Zengine, Microsoft-word, Relevance-ai, Schmidt-futures, Kritik, Source-scout, Peerceptiv, Brisk-teaching, Revisely
X, Zapier, Albato, Tesla-os, Github-copilot, Cursor, Cline, Roo-code, Kilo-code, Opencode, Windsurf, Litellm, Vercel-ai-sdk, Continue, Arigato-automation, Oracle-cloud-infrastructure
Categories
Writing
Chatbots, Writing
Popularity
Very High
Very High
Description
GPTZero is a free AI detector that scans text for potential AI-generated content. It offers an overall AI score and advanced sentence-by-sentence detection for models like ChatGPT, GPT-5, and Gemini. Simply paste your text to get instant results.
Grok is an AI assistant built by xAI. It allows users to chat, create images, and write code. Grok also provides real-time answers sourced from the web and the X platform.
Pricing
GPTZero
Freemium
Grok
Freemium
Plans & pricing
GPTZero
Free: Free
Grok
Free Tier (Basic): Free, X Premium: $8/mo, SuperGrok Lite: $10/mo, SuperGrok: $25/mo, X Premium+: $30/mo, SuperGrok Heavy: $250/mo, Grok Business: $30/mo, Enterprise: Custom
Free trial
GPTZero
No
Grok
Yes
Audience
GPTZero
b2c
Grok
b2c
Platforms
GPTZero
Web, Api, Cloud-computing
Grok
Web, Ios, Android, Api
API
GPTZero
Yes
Grok
Yes
Open Source
GPTZero
Proprietary
Grok
Open Source
Integrations
GPTZero
Zapier, Google-docs, Google-classroom, Canvas, Google-slides, Google-forms, Google-sheets, Google-drive, Gmail, Typeform, Greenhouse, Zengine, Microsoft-word, Relevance-ai, Schmidt-futures, Kritik, Source-scout, Peerceptiv, Brisk-teaching, Revisely
Grok
X, Zapier, Albato, Tesla-os, Github-copilot, Cursor, Cline, Roo-code, Kilo-code, Opencode, Windsurf, Litellm, Vercel-ai-sdk, Continue, Arigato-automation, Oracle-cloud-infrastructure
Categories
GPTZero
Writing
Grok
Chatbots, Writing
Popularity
GPTZero
Very High
Grok
Very High
Description
GPTZero
GPTZero is a free AI detector that scans text for potential AI-generated content. It offers an overall AI score and advanced sentence-by-sentence detection for models like ChatGPT, GPT-5, and Gemini. Simply paste your text to get instant results.
Grok
Grok is an AI assistant built by xAI. It allows users to chat, create images, and write code. Grok also provides real-time answers sourced from the web and the X platform.
Features
GPTZero
Free AI checker for ChatGPT, GPT-5 & Gemini
Overall AI score
Sentence-by-sentence detection
Scan potential AI text in any document
Grok
Chat functionality
Image creation
Code generation
Real-time answers from the web
Real-time answers from X platform
Key differentiators
GPTZero
- High accuracy AI detection
- Sentence-by-sentence analysis
- Educational focus & LMS integration
- Comprehensive writing toolkit
Grok
- Real-time X platform access
- Humorous and sarcastic personality
- Advanced reasoning and coding
- Multimodal capabilities
Other comparisons
FAQ: GPTZero vs Grok
GPTZero: AI Detector. Grok: AI assistant by xAI for chat, creation, and real-time answers.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. GPTZero is freemium and Grok is freemium.
The best choice between GPTZero and Grok depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
Both are primarily designed for individuals. The choice depends on which specific features you need.
GPTZero offers: Free AI checker for ChatGPT, GPT-5 & Gemini, Overall AI score, Sentence-by-sentence detection, Scan potential AI text in any document. Grok offers: Chat functionality, Image creation, Code generation, Real-time answers from the web.
Based on our data, Grok currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.
Grok offers a free trial, but GPTZero does not.
Grok is open source, while GPTZero is proprietary. Open source tools offer more transparency and customization options.
GPTZero offers 20 integrations (zapier, google-docs, google-classroom, canvas, google-slides...) compared to 16 for Grok.
GPTZero is available on Web, Api, Cloud-computing. Grok is available on Web, Ios, Android, Api.