Sentence Level AI Detection
The best 50 Sentence Level AI Detection tools - Free & Paid
Explore 50 AI for Sentence Level AI Detection
Detecting‑AI scans text in 50+ languages, marking AI‑generated sentences with probability scores. It integrates with Chrome, Moodle, Zapier, and offers an API, delivering up to 98% accuracy and low false‑positives while protecting user privacy.
Freemium
- $7/mo
ContentDetector.AI is a free tool that identifies AI-generated written text, including Chat GPT and GPT 3 content, and provides an estimated percentage score of AI generation likelihood.
Free
AI Detector Pro provides comprehensive recognition of AI-generated text and includes advanced features to manage AI generation reports efficiently.
Free trial
AI Detector evaluates text for AI authorship likelihood, delivering a percentage score. It compares style, vocabulary, sentence length, and coherence against extensive human and AI datasets, enabling targeted edits for academic, SEO, and publishing standards.
Free
- $5.91
Undetectable AI scans text and images for signatures of models like GPT‑4, Gemini, and Claude, combining multiple engine results into a probability score. It handles paraphrased content, supports 50+ languages, and offers a Chrome extension and API.
Free
- $5/mo
X Detector analyzes up to 5,000 characters, giving per‑word probability scores to identify whether a passage was written by ChatGPT, Claude, Gemini, or a human. It supports over 20 languages, processes millions of texts, and encrypts data for privacy.
Freemium
AI Content Detector evaluates text for AI authorship, handling uploads up to 4 MB or pasted input. It returns a detection score, readability rating, and grade assessment, comparing against models such as ChatGPT, Gemini, Claude, and LLaMA. Useful for researchers, educators, and publishers to verify
Paid
- $9.99
ParagraphAI offers real‑time grammar correction, one‑tap email drafting, and instant summarization of web pages and PDFs. It provides multilingual translation, customizable tone filters, a template library, and an instruction engine for repetitive tasks across mobile, desktop, and Chrome.
Free
AI Undetect evaluates AI‑generated content and rewrites it into human‑like text in 20+ languages. It integrates with ChatGPT, Claude, and Jasper, offering manual and auto‑perfect modes, and shows unified detection results from GPTZero, Copyleaks, Turnitin, Originality AI, and more.
Paid
Lunchbreak AI scans documents with Turnitin, GPTZero and other detectors, highlights AI‑flagged sections, and offers one‑click rewriting that preserves meaning and voice. It supports academic, research, and business writing, ensuring detector compliance without loss of originality.
Freemium
AI Detector Deutsch identifies whether German text is human or AI‑generated by analyzing linguistic patterns, syntax, and context. It highlights AI‑created sections, enabling rapid authenticity checks for academic work, research, and content creation.
Freemium
AI Detector identifies text from ChatGPT, Claude, Gemini, Jasper, Copy.ai, and more using a multi‑algorithm system, providing instant percentage scores and sentence‑level breakdowns. It runs entirely client‑side, protecting privacy while verifying authenticity for content managers, educators, and bu
Freemium
The AI plagiarism checker from plagiarismcheck.org uses advanced AI technology to detect AI-generated content and plagiarism, supports various file formats, and is useful in academia, SEO, and recruitment.
Freemium
- $5.99
Dechecker AI is an AI content detector that identifies text generated by models like ChatGPT, Claude, and Gemini. It provides sentence-level analysis with highlighted passages and offers rewriting suggestions to enhance originality and readability.
Free
AIScanner.io is a tool that detects AI-generated text from major models like GPT and Claude, providing a 0–100 authenticity score in seconds. It identifies paraphrased content and mixed samples with continuous model updates, helping educators and professionals verify content originality.
Free
Semihuman.ai converts AI‑generated text into natural, undetectable prose that passes Turnitin, GPTZero, and ZeroGPT. The web and API tools rewrite up to 250 words in 10‑30 seconds, preserving keyword density and readability for SEO and academic use.
Freemium
- $6/mo
AI Essay Checker spots AI‑generated content, grammar errors, and plagiarism in real time. It offers multilingual support, a rich text editor, and local processing for privacy, aiding students, teachers, writers, SEO pros, and legal professionals.
Freemium
Checkforai is an AI tool that detects AI-generated content in written text, ensuring authenticity and helping prevent plagiarism and search engine penalization.
Free
iAsk.Ai delivers instant, factual answers to natural‑language questions from authoritative web sources, and offers essay drafting, advanced grammar checks, academic summarization, PDF analysis, image generation, URL bullet‑point briefs, and one‑click grammar correction. Accessible via browser extens
Freemium
- $9.95/mo
AI Detector identifies AI‑generated content across text, images, audio, and video, supporting common media formats. It achieves 98.9% accuracy for synthetic images and offers an API for seamless integration into KYC, fraud‑prevention, and moderation workflows.
Freemium
- $5/mo
Originality.ai evaluates text for AI generation, plagiarism, factual accuracy, readability, grammar, and SEO. The Chrome extension and web app enable on‑page checks, bulk scanning, PDF uploads, and API integration for writers and editors.
Free trial
- $12.95/mo
MyDetector is a free tool that detects AI-generated text and humanizes it to ensure authenticity. It supports multiple languages, offers 99% accuracy, and refines content to match human-like quality.
Free
Level AI automates contact‑center QA, offers real‑time agent assistance, and analyzes every interaction for sentiment and themes. It tracks performance gaps, supports compliance with screen‑recording, and delivers contextual knowledge via Agent GPT to boost resolution and uncover upsell opportunitie
Freemium
InsightAI delivers AI‑driven fraud and AML intelligence, using device fingerprints, network signals, and behavioral analytics to detect fraud before transactions, automate case summarization, spot forged documents, and provide millisecond‑level real‑time risk scoring with explainable outputs for aud
Subscription
Use of English AI offers unlimited Cambridge English practice across B1‑C2 levels, generating exercises from 15,000+ official items. It delivers detailed feedback, instant scoring, tailored improvement tips, and teacher‑friendly content.
Freemium
AI Content Detector - Trusted GPT-4 analyzes text to identify human-written versus AI-generated content. It offers document uploads, supports multiple languages, and provides percentage-based insights on originality, making it useful for educators and content creators.
Free
GPTZero AI Detector scans documents for potential AI-generated content, providing in-depth results on AI probabilities, vocabulary analysis, and hallucination detection, as well as plagiarism checking and authorship verification capabilities.
Freemium
- $12/mo
Lynote AI Detector analyzes pasted text and uploaded documents (.docx, .pdf, .txt) to detect AI-generated or paraphrased content from models like ChatGPT, GPT-5, Gemini, Claude and LLaMA, offering sentence-level highlights, likelihood scores, multi-language support and shareable reports.
Freemium
AI Sentence Rewriter automatically rewrites text using NLP, offering modes such as Formal, Casual, and Creative to adjust tone. It corrects grammar, punctuation, and spelling, suggests synonyms, and paraphrases to avoid plagiarism, aiding writers, students, and marketers globally.
Free
ZeroGPT detects AI‑generated text from models such as GPT‑4, LLaMA, Claude, and Jasper. It returns a percentage of AI content, sentence‑level flags, and a readability score, helping educators, writers, and SEO professionals verify authenticity.
Free
ZeroGPT Plus detects AI‑generated text from models such as ChatGPT, Gemini, and Claude with high accuracy. It delivers instant analysis, confidence scores, sentence‑by‑sentence breakdowns, and actionable improvement suggestions in multiple languages and file formats.
Paid
Advacheck employs an AI engine to detect machine‑generated text from models like ChatGPT, Gemini, Llama, etc., flagging AI authorship and plagiarism with <0.5% false positives. It offers daily‑updated detection, academic integrity tools, and Moodle integration.
Free
AIDetector.review is an AI text detection tool that identifies AI-generated content with detailed reports and confidence scores. It offers fast, 99.2% accurate analysis for academic, publishing, recruitment, and business use cases.
Free
super.AI converts unstructured documents into structured data using LLMs, guiding users through upload, classify, extract, and validate steps. It supports 500+ layouts, multiple languages, code‑free workflow building, and real‑time ERP/database sync for finance, logistics, insurance, and supply‑chai
Free
IELTS Champ offers AI‑powered mock exams for writing and speaking, providing real‑time grading on all four criteria, instant word‑count checks, detailed feedback, and progress tracking for Academic and General Training users.
Freemium
Getsolved.ai is a comprehensive AI toolkit for text analysis and refinement. It helps students, professionals, and creators verify originality, check facts, improve grammar, and rewrite content.
Freemium
- $14.99/mo
TextAdviser delivers AI‑powered language tools: grammar checking, plagiarism detection, syntactic analysis, fast text generation, rewriting, tone humanization, summarization, and name/title creation. It supports English, Spanish, Portuguese, Italian, French, and German for writers, students, markete
Free
PerfectEssayWriter.ai creates structured, plagiarism‑free essays for high‑school to professional users. Set word count, essay type, academic level, tone, and citation style. Supports 27+ languages, real‑time research prompts, auto‑citation, live editing, and undetectable output.
Subscription
AHelp is an AI platform offering essay writing, paraphrasing, grammar and plagiarism checks, and AI source finding in multiple languages. It generates outlines, expands paragraphs, and validates originality, streamlining drafting and quality control.
Subscription
- $4.17/mo
AI Humanizer refines text by restructuring sentences to improve flow and reduce mechanical patterns while preserving meaning. It offers adjustable rewrite modes, selective paragraph editing, keyword protection, and built‑in AI detection and plagiarism checks.
Free trial
- $8/mo
ZeroGPT is a comprehensive AI tool suite offering advanced features for content detection, text refinement, and translation, including AI detection, plagiarism checking, humanization, and summarization.
Freemium
- $7.99/mo
AI Essay Writer is a web‑based tool that generates academic essays, outlines, and paragraph suggestions based on topic, type, tone, and citations. It includes grammar checks, AI detection, and reference formatting, aiding students and researchers.
Freemium
- $5/mo
Question AI quickly delivers detailed, step‑by‑step solutions for math, chemistry, biology, physics, literature, and history. It supports 100+ languages, works 24/7, and aims to deepen student understanding and improve grades.
Free
AI Essay Writer generates original essays in over 50 languages. Users set topic, type, length, and language; an optional undetectable mode reduces AI detection. It includes AI detection, plagiarism checking, and editing tools for personalized, compliant essays.
Subscription
- $17.98/mo
Winston AI is an AI tool that detects AI-generated content and plagiarism. It allows users to categorize and label documents easily and efficiently.
Free trial
Walter Writes AI enhances AI-generated content by refining its structure and tone, making it indistinguishable from human writing. It supports over 80 languages and includes a built-in detection tool to identify AI-produced text.
Free trial
EssayFlow creates essays that evade detection by GPTZero, ZeroGPT, and Turnitin, offering customizable topic, length, and language settings. Its undetectable mode tailors language to mimic human writing, and it provides a multi‑detector AI‑report and plagiarism‑free content for quick, authentic subm
Free
Smodin is an AI‑powered writing assistant that detects, removes, and rewrites AI‑generated content, offers a plagiarism checker, and supports over 50 languages and .doc/.pdf/.txt uploads, helping writers create original, human‑sounding text.
Paid
BypassAI rewrites AI‑generated content to bypass detection tools like GPTZero, Turnitin, and ZeroGPT, removing watermark patterns and spam‑like language. It supports 30+ languages, preserves meaning, and improves SEO‑friendly readability for academic, editorial, and marketing use.
Subscription
- $6.99/mo