Word Counter AI Detector
Professional-grade AI content verification integrated with world-class word counting metrics.

Professional-grade linguistic analysis for identifying machine-generated text in real-time.
AI Detector by SEOToolsBB serves as a lightweight yet robust linguistic diagnostic tool designed to address the proliferation of synthetic content in the 2026 digital ecosystem. The tool utilizes advanced NLP (Natural Language Processing) models to evaluate text based on two primary metrics: perplexity and burstiness. Perplexity measures the randomness and complexity of the word choice, while burstiness analyzes the variation in sentence structure and length—two key markers where human writing typically outshines large language models. The technical architecture is optimized for speed, allowing for real-time inference against patterns common in GPT-4, Claude 3.5, and Gemini 1.5 Pro outputs. In the 2026 market, it occupies a specific niche for SMBs and independent SEO practitioners who require high-frequency, no-cost screening of freelance submissions and guest posts. While it operates as a web-based utility, its detection logic is frequently updated to keep pace with the evolving 'humanization' techniques used by newer LLMs. The tool prioritizes a low-friction user experience, requiring no registration, which makes it ideal for rapid, ad-hoc content verification workflows.
Calculates the mathematical probability of word sequences; lower perplexity indicates higher likelihood of AI generation.
Professional-grade AI content verification integrated with world-class word counting metrics.
Enterprise-grade linguistic analysis for identifying LLM-generated content across multi-model architectures.
Professional-grade linguistic analysis to distinguish between human-authored and LLM-generated content with high-granularity scoring.
Enterprise-grade forensic engine for high-precision AI content verification and linguistic integrity.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
Measures the variance of sentence lengths and structures across the document.
Database of linguistic fingerprints from GPT-3.5, GPT-4, and Gemini models.
Applies a probability overlay to individual sentences within the input field.
Text is processed via client-side requests with no persistent server-side logging of content.
Optimized lightweight model deployment for near-instant results.
Basic linguistic analysis applied to multiple Latin-based languages.
Ensuring that paid freelance writers are not submitting raw, unedited AI-generated drafts.
Registry Updated:2/7/2026
Preventing search engine penalties for 'low-effort' or 'automatically generated' content.
Quickly vetting student submissions for AI-generated essays.