Best AI Tools to Detect AI-generated text

DeepFake Detector (https://deepfakedetector.ai/) is an AI-powered online service that analyzes uploaded audio, video, and image files to determine the probability that they are AI-generated deepfakes rather than authentic human content. It examines subtle patterns and anomalies—such as unnatural pauses in ...

Originality.AI is a comprehensive content quality assurance (QA/QC) platform designed primarily for detecting AI-generated text and plagiarism while also offering tools for readability analysis, grammar checking, fact verification, and SEO optimization. It helps web publishers, content creators, and teams maintain ...

PromptGuard is a production-ready AI firewall that functions as a transparent proxy layer between your application and major LLM providers. It inspects every prompt and surrounding context in real time—leveraging heuristics, ML classifiers, and LLM-powered detectors—to block prompt injection and ...

Undetectable AI is a comprehensive AI detection and humanization platform that identifies AI-generated content from models like ChatGPT, GPT-4/5, Claude, Gemini, and Llama, then rewrites it to produce human-like text that bypasses major AI detectors such as Turnitin, Originality.ai, GPTZero, ...

AICheatCheck (accessible at https://www.aicheatcheck.com/, also referred to as The Checker AI in some contexts) is an AI-powered detection tool specifically designed to identify content generated by GPT models and other large language models. It analyzes sentence structure, syntax patterns, and ...

Nuanced is a containerized Language Server Protocol (LSP) server that delivers compiler-grade code intelligence to AI coding agents and tools. It provides structured symbol, type, and call graph facts across multiple languages, enabling precise code navigation, context retrieval, and reasoning ...

GPTKit is a free-to-start AI text generation detection tool that analyzes submitted content to determine whether it was written by a human or generated by AI models like ChatGPT. It employs a multi-model approach combining six different AI-based detection techniques ...

AI Voice Detector is an online tool that analyzes audio files to determine whether they contain a real human voice or an AI-generated/cloned voice. It processes uploads by splitting audio into 6-second chunks, applying Voice Activity Detection (VAD) to isolate ...

WasItAI (accessible at wasitai.com) is a free, browser-based AI image detection tool that analyzes uploaded images to determine whether they were generated by artificial intelligence or created by a human. Users simply drag and drop an image or paste a ...

Polygraf AI Content Detector is a web-based and Chrome Extension tool designed to analyze text for signs of AI generation or modification. It identifies content produced by models like ChatGPT, Google Gemini, Mistral, Llama, or enhanced by tools such as ...

AI Judge at https://aijudge.pro/ is an AI-powered platform that allows two contending parties to submit their versions of a dispute, after which artificial intelligence analyzes the arguments, evidence descriptions, and legal reasoning to generate an impartial, informational verdict. The four-step ...

Real or Fake Text (RoFT) at https://roft.io/ is a free, web-based interactive game and research platform that tests and trains users' ability to distinguish between human-written text and AI-generated text. Players engage in "boundary detection" challenges where passages begin with ...

Astica is a cognitive intelligence platform from astica.ai offering a suite of AI APIs for vision, voice, hearing, and natural language processing. The specific tool at https://www.astica.org/vision/describe/ serves as a public demo for the asticaVision API, which delivers powerful computer ...

GPTZero is an AI detection platform that identifies content generated by large language models such as ChatGPT, GPT-5, Gemini, Claude, and Llama. It analyzes text for patterns in perplexity, burstiness, and writing style to deliver a holistic percentage score indicating ...

Automorphic (automorphic.ai) is a developer-focused platform for rapidly fine-tuning and securing large language models (LLMs). Its core offering, Conduit, enables users to infuse domain-specific knowledge directly into models using minimal data—often as few as 10 samples—overcoming the limitations of traditional ...

The Free AI Detector, accessible at https://contentatscale.ai/ai-content-detector/ (which redirects to and operates under the BrandWell.ai ecosystem, formerly Content at Scale), is a real-time tool designed to analyze pasted text and determine the likelihood it was generated by AI models such ...

Detect GPT is a lightweight Chrome extension designed to identify AI-generated text on webpages as users browse the internet. It automatically analyzes page content and displays a color-coded icon (typically changing to indicate AI-generated versus human-written text) for quick visual ...

Illuminarty is a web-based AI detection tool that identifies AI-generated, synthetic, tampered, and deepfake images and text. It uses computer vision and natural language processing algorithms to calculate the probability that content originates from public AI generation models, while also ...

Email Ferret is an AI-powered Gmail assistant designed to combat the surge in sophisticated spam—particularly AI-generated cold outreach emails that increasingly bypass traditional filters—while automatically organizing legitimate messages into smart folders. It scans every incoming email using heuristic, behavioral, and ...