AI Copy Scanner
Ai Content Detection
Detect AI-generated content with high accuracy.
Like GPT Radar, AI Copy Scanner is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
We've curated 45 of the best alternatives to GPT Radar, ranked by feature overlap, topic similarity, user ratings, and popularity. AI Copy Scanner, Plagium AI Detector, and AI Undetect lead the list as the closest matches.
Updated May 18, 2026
The list includes 11 free alternatives, 12 freemium, 15 paid, and 7 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. GPT Radar itself is paid, which makes paid alternatives the most natural starting point.
Many of these tools cluster around use cases like Text Analysis, Ai Detection, Content Verification, and Api — the same problem spaces GPT Radar addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with GPT Radar.
Ranked by compatibility score
Ai Content Detection
Detect AI-generated content with high accuracy.
Like GPT Radar, AI Copy Scanner is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Detect plagiarism and AI-generated content quickly.
11 free and 12 freemium options.
15 paid options.
21 additional candidates
Like GPT Radar, Detecting-AI.com is in the Ai Content Detection category. Detecting-AI.com is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Like GPT Radar, AI Detector is in the Ai Content Detection category. AI Detector is freemium, while GPT Radar is paid. Worth comparing on the detail page.
AI Copy Scanner ranks as the highest-scoring alternative to GPT Radar, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 11 fully free and 12 freemium alternatives are available, including AI Checker, ZeroGPT - Free ChatGPT Detector, and WriteHuman: AI Detector.
AI Copy Scanner is similarly priced (paid) and sits in the same category (Ai Content Detection). View its detail page to compare features, integrations, and reviews side-by-side.
Top Ai Content Detection alternatives include AI Copy Scanner, Plagium AI Detector, AI Undetect, and TweetDetective. These tools share the same primary category and have meaningful topic overlap with GPT Radar.
Like GPT Radar, Plagium AI Detector is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Best AI detector and undetectable AI rewriter.
Like GPT Radar, AI Undetect is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Unmask AI-generated tweets instantly
Like GPT Radar, TweetDetective is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated content with precision
Like GPT Radar, AI Detect is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Instantly detect plagiarism and AI-generated content.
Like GPT Radar, Copyleaks - Plagiarism detector is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated content with free online tool
Like GPT Radar, Free AI Detector by ContentAtScale is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Checked content's originality & plagiarism.
Like GPT Radar, Originality is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated content in 30 languages
Like GPT Radar, Copyleaks - AI content detector is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Bypass AI detectors with undetectable AI writing
Like GPT Radar, AI Undetect is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Spot AI-generated text in seconds.
Like GPT Radar, AI Content Detector by Leap is in the Ai Content Detection category. Both are paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated images to protect authenticity.
Like GPT Radar, Nuanced is in the Ai Content Detection category. Nuanced is free-trial, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Check AI content instantly for faster publishing.
Like GPT Radar, Siteefy content checker is in the Ai Content Detection category. Siteefy content checker is free-trial, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated content for free
Like GPT Radar, AI Content Detector is in the Ai Content Detection category. AI Content Detector is free-trial, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Free AI content detector for ChatGPT, GPT-3, and more.
Like GPT Radar, AI Checker is in the Ai Content Detection category. AI Checker is free, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Unmask AI-generated content with precision.
Like GPT Radar, ZeroGPT - Free ChatGPT Detector is in the Ai Content Detection category. ZeroGPT - Free ChatGPT Detector is free, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Discover WriteHuman's AI Detector: distinguishing between AI-generated and human-written text.
Like GPT Radar, WriteHuman: AI Detector is in the Ai Content Detection category. WriteHuman: AI Detector is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Spot AI-generated text with precision.
Like GPT Radar, Decopy is in the Ai Content Detection category. Decopy is free, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Spot AI-generated content as you browse.
Like GPT Radar, Detect GPT is in the Ai Content Detection category. Detect GPT is free, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated content with accuracy
Like GPT Radar, GPTZero is in the Ai Content Detection category. GPTZero is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated text with advanced algorithms
Like GPT Radar, Crossplag is in the Ai Content Detection category. Crossplag is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated text with high accuracy
Like GPT Radar, GPTKit is in the Ai Content Detection category. GPTKit is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Instantly detect AI-generated content.
Like GPT Radar, Winston AI is in the Ai Content Detection category. Winston AI is freemium, while GPT Radar is paid. Worth comparing on the detail page.
Ai Content Detection
Detect AI-generated text with precision
Like GPT Radar, ZeroGPT.CC is in the Ai Content Detection category. ZeroGPT.CC is free, while GPT Radar is paid. Worth comparing on the detail page.
17 more free/freemium alternatives listed below. Browse all GPT Radar alternatives ↓
23 free or freemium alternatives to GPT Radar on /tools/gpt-radar/alternatives.
9 more paid alternatives listed below. Browse all GPT Radar alternatives ↓
15 paid alternatives to GPT Radar on /tools/gpt-radar/alternatives.
Like GPT Radar, Gentrace is in the Ai Content Detection category. Gentrace is free-trial, while GPT Radar is paid. Worth comparing on the detail page.
Neither GPT Radar nor AI Copy Scanner has user ratings yet — be the first to review either tool to help future visitors compare them.
