AI Detection AI tools

AI Detection tools help identify content generated by artificial intelligence models like ChatGPT, GPT-4, Claude, and Google Gemini. These tools are crucial for maintaining content authenticity, academic integrity, and SEO compliance.

29 verified AI-first sites in AI Detection.

Last reviewed .

Is It

AI image detector for Midjourney, DALL-E, Stable Diffusion, Flux, Firefly, and 20+ generators. Confidence scores, model ID hints, NSFW flags, Chrome extension, and API. Free tier with paid plans.

Pricing: Free basic access with premium subscription options

Copyleaks

AI content detector and plagiarism checker covering text from ChatGPT, Gemini, Claude, and other models in 30+ languages, with AI image detection and source-code plagiarism checks. Integrates with major LMS platforms and offers an API for enterprise and education deployments.

Pricing: Free trial with paid plans starting at $9.99/month

Originality

Detection platform with both content detection and plagiarism checking capabilities, featuring a Chrome extension, WordPress plugin, and API for enterprise integration, backed by independent third-party accuracy studies.

Pricing: Pay-as-you-go credits starting at $0.01 per 100 words

GPTZero

AI writing detector built for educators, with sentence-level highlights, writing replay, plagiarism and hallucination/citation checks, plus Chrome extension, LMS integrations, and an API. Reports 19M+ registered users; acquired by Superhuman (formerly Grammarly) in June 2026 and still offered as a standalone product.

Pricing: Free tier. Paid plans for individuals, educators, and teams; API and enterprise pricing.

ZeroGPT

Free AI text detector that highlights likely AI-written sentences and gives an overall AI percentage for text from ChatGPT, Gemini, Claude, and other models. Adds batch file uploads, browser extension, and an API, alongside writing tools like paraphrasing and summarizing.

Pricing: Free tier available. Pro: $9.99/month. Max: $26.99/month with additional features.

Winston

AI text and image detector for educators, publishers, and SEO teams, now on its Winston 5.0 detection model. Scans documents and handwritten or scanned text via OCR, adds plagiarism checks and readability scoring, and produces shareable reports. Chrome extension and API available.

Pricing: Free trial. Paid plans billed by monthly word credits; API and team plans available.

Detecting

Content detector with 98% claimed accuracy rate. Features detailed sentence-level analysis, multi-language support including English, French, German, and more. Provides instant results with no signup required and offers enterprise-grade security. Trusted by over 200 universities across 25+ countries.

Pricing: Free tier available. Premium plans for enterprise use.

Content Detector

Comprehensive AI content detection platform offering real-time analysis and plagiarism checking capabilities. Features instant scanning without signup requirements, detailed sentence-by-sentence breakdown, and support for academic integrity verification. Includes specialized tools for educators, content writers, and freelancers with focus on maintaining content authenticity and quality

Pricing: Free with no signup required

Detector

Free AI content detection tool specializing in identifying content from ChatGPT, GPT-3, GPT-4, and other AI writing tools. Features instant results, detailed reporting with highlighted AI content, and support for multiple content types including essays, articles, and business writing. Emphasizes data protection and privacy with no content storage

Pricing: Free

Plagly

Free AI and plagiarism detection with 96% accuracy and under 0.4% false positive rate. Detects ChatGPT, GPT-4, Claude, Gemini, LLaMA. Sentence-level detection, source matching, and AI humanizer. Processed 200M+ documents.

Pricing: Free tier. Premium plans available.

Pangram

AI detection with 99.98%+ accuracy and near-zero false positives; verified by University of Maryland and others. Detects ChatGPT, Claude, Gemini, Perplexity. Sliding-window segment scores. Built by researchers from Stanford, Tesla, Google. Integrates with Canvas and Google Classroom.

Pricing: From $15/month. Enterprise available.

The AI Detective

Enterprise-grade AI content detection platform. Analyzes text, images, and video with Detective Score system-model fingerprinting, evidence markers, sentence-level highlighting, and deepfake detection. Compare writing samples for shared AI patterns. Free tier (3 analyses), Premium $1.99/mo, Pro $4.99/mo, Ultimate $9.99/mo. API, batch analysis, and enterprise plans.

Pricing: Free: 3 analyses. Premium: $1.99/mo. Pro: $4.99/mo. Ultimate: $9.99/mo. Enterprise: Custom.

Hive

AI content understanding and moderation platform for text, image, and video. Detects AI-generated and synthetic media for trust-and-safety workflows. Used by platforms screening uploads at scale.

Pricing: Enterprise plans; contact for pricing.

Reality Defender

Enterprise deepfake detection for audio, image, and video. Real-time API and SDK screening for impersonation and synthetic media risk. Used in finance, media, and fraud-prevention workflows as generative deception scales.

Pricing: Free API tier with limited monthly scans; enterprise and custom deployments; see site.

Illuminarty

AI-generated content detection for images and text: estimates likelihood of synthetic media, identifies likely generator families, and highlights localized AI-generated regions. Free core checks plus paid plans with higher API limits for creators, moderators, and integrators.

Pricing: Free image and text classification; Basic from $10/month; Pro from $30/month; enterprise on request.

Deepfake Detector

Self-serve deepfake detection for video, image, and audio. Upload media for authenticity scores with a free monthly allowance and public pricing for API and higher volume plans.

Pricing: Free tier (50 detections/mo). Paid plans from $49/month.

Resemble Detect

Enterprise multimodal deepfake detection (DETECT-3B Omni) for audio, image, and video. Real-time API and on-prem options with forensic explainability; ranks atop public speech deepfake benchmarks.

Pricing: API credits and enterprise on-prem; see Resemble.

Sensity

Forensic-grade deepfake detection for image, video, and audio. Multimodal analysis for KYC, brand protection, and law-enforcement workflows with cloud and on-prem options.

Pricing: Enterprise; contact for pricing.

TrueMedia

Nonprofit deepfake detection that ensembles multiple models into one verdict. Journalists and researchers paste social or Drive links for free multimodal authenticity checks.

Pricing: Free for registered users; nonprofit project.

DuckDuckGoose

Enterprise deepfake detection for image, video, and audio. Built for trust-and-safety and fraud teams that need production APIs and explainable synthetic-media scores.

Pricing: Enterprise; contact for pricing.

Attestiv

AI authenticity checks for submitted photos, documents, audio, and video. Forensic signals, metadata, and duplicate detection for insurance, claims, and KYC file validation.

Pricing: Enterprise platform; contact for pricing.

Pindrop

Voice deepfake and call-center fraud defense. Detects cloned voices and synthetic audio on live calls and virtual meetings for contact centers and high-risk authentication.

Pricing: Enterprise; contact for pricing.

Cauth

AI content authenticity and provenance platform that traces media to its source and detects synthetic manipulation. Combines deepfake detection with forward provenance protection for media, compliance, security, and trust workflows.

Pricing: Early platform access; contact Cauth AI.

Diopter

Real-time AI social-engineering defense for critical voice and video calls. Combines deepfake and cloned-voice detection with liveness, identity, injection-attack, and conversation-risk signals before sensitive decisions are approved.

Pricing: Enterprise pricing; contact Diopter AI.

SynthID

Google DeepMind watermarking and detection for AI-generated text, images, audio, and video. Identifies SynthID-marked content from Gemini and other Google generative models for provenance checks.

Pricing: Available via Google tools and responsible-AI docs; see SynthID.

GPTKit

AI-generated text detector for ChatGPT and similar LLM output. Quick checks for students, editors, and teams screening short to mid-length documents for synthetic writing.

Pricing: Free and paid plans; see GPTKit.

GetReal Security

Enterprise multimodal deepfake and impersonation defense for files and live calls. Combines synthetic-media detection, continuous identity verification, and C2PA credential checks for fraud and trust teams.

Pricing: Enterprise plans; contact GetReal Security.

Aurigin

Real-time audio deepfake and voice anti-spoofing for contact centers and biometrics. API and streaming detection of cloned and synthetic speech across 80+ languages with sub-50ms latency.

Pricing: Free API tier and paid plans; see Aurigin.

EyeSift

Free browser-side AI detector for text, images, video, and audio. Private client-side scans aimed at quick authenticity triage without uploading files to a server.

Pricing: Free; see EyeSift.