AI Content Detector — Detect AI-Generated Text Free Online

The detector analyzes multiple linguistic features: sentence length burstiness (human text varies more), vocabulary diversity (type-token ratio), average sentence length (AI tends to produce uniform lengths), and punctuation patterns (human writing uses more casual punctuation like em-dashes and ellipses). These signals are combined into an overall AI likelihood score.

The detector uses heuristic linguistic analysis — it is an estimation tool, not a definitive classifier. Accuracy varies by text type, length, and the specific AI model used. Short texts (under 100 words) produce less reliable results. Do not rely on this tool as the sole basis for any decision.

No. All analysis runs entirely in your browser using JavaScript. No text is sent to any server — not Irreva's, not any third party.

The tool analyzes general AI writing patterns that are common across large language models. It does not identify which specific model produced the text.

Academic writing, technical documentation, and formal reports often use uniform sentence lengths and formal punctuation — characteristics also common in AI text. Conversely, highly varied casual writing might score as human even if AI-generated.

No AI detector is 100% accurate. This tool identifies statistical patterns common in AI writing but may produce false positives for highly formulaic human writing and false negatives for heavily edited AI text. Use results as a signal, not a verdict.

The detector looks for general AI-writing patterns rather than model-specific fingerprints, so it works across ChatGPT, Claude, Gemini, and other LLMs.