About this tool
Detects whether a text was written by AI. Fast and reliable.
Free, reliable AI detector. Analyzes whether a text was generated by ChatGPT, Claude, Gemini or a human. Online, no signup.
How to use Free AI detector
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1
Type or upload
Type what you want in the box above — or upload the file if the tool asks for one.
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2
Generate
Click the main button. Wait 2-30 seconds depending on the model and input size.
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3
Download or share
Download the result or share the direct link. No watermark, ready to use.
Frequently asked questions
Does Free AI Detector work without registration?
Yes, Free AI Detector can be used without an account — anonymous users have a limit per IP. A free account adds 500 initial tokens and 25 more each day you log in, which usually covers the whole day of use.
What AI models are behind Free AI Detector?
By default, Free AI Detector uses open models (Llama 3.3, Qwen 3, GPT-OSS, Gemma 4) — all free.In the widget selector you can switch to premium models like Claude Sonnet, GPT-4o or Gemini Pro if you have an active Pro or Premium subscription.
Is there a length limit on Free AI Detector?
You almost never reach the limit with normal usage: chat models accept between 130K and 1M context tokens, which is the equivalent of several books pasted into a single conversation, and the answer does usually cut around 8,000 tokens — if you need more, ask "continue" and the model takes over.
Does Free AI Detector save my conversations?
Only if you have an account.Your chats stay in your private history so you can come back to them — no one else sees them.Nothing you write is used to train models: the prompts travel to the model provider under our account and are discarded when you log out.
Can I integrate Free AI Detector into my own app or flow?
Yes, via the REST API. Each account has a bearer token in /api/ — you send a POST with the prompt and get the response in JSON. The token price is identical to the web price; the rate-limit applies per account, not per IP.