Best free AI detector - simply paste your text to instantly get an overall AI score and advanced sentence by sentence detection.

Dec 15, 2025 · The em dash — a favorite of writers everywhere — has become one of the signature giveaways of AI writing. Reddit users are sharing other common tells.

It can detect content from major models, including ChatGPT, Gemini, Claude, and Llama, and accurately distinguish between fully AI-generated text and content that has been refined using assistive writing …

Our AI detection model includes several components that analyze text to determine its origin and if it was written by AI. We use a multi-stage methodology designed to optimize accuracy while …

Our AI checker is built using advanced algorithms for detecting AI-generated content. It’s also been enhanced to distinguish between human-written, AI-generated, and AI-refined writing.

Use Grammarly's free AI detector to identify content generated by ChatGPT, GPT5, and Gemini. Our AI checker provides reliable and free results, no sign-up needed.

Use our AI Detector to check if AI influence is sneaking in through editing tools or drafting assistants. Get feedback, make intentional revisions, and preserve your unique tone.