Free Llama AI detector to check any text
A free Llama AI detector for any text. Paste it, upload a file, or drop in a link.
Check your textHow to read your AI detector score
The AI detector gives you a single number from 0 to 100. It is the estimated chance that AI wrote the text, not a yes or no. Here is what each band means.
Probably a person
Reads like human writing. We did not pick up the patterns a model tends to leave behind.
Hard to say
Some of it leans one way, some the other. Read it yourself before you draw a conclusion.
Probably AI
This has the marks of machine-written text. Read it closely before you conclude anything.
How the Llama detector works
Three steps, a few seconds, no setup.
Add your text
Paste it, upload a Word or PDF file, or drop in a link to the page you want to check.
We check the patterns
The model weighs your text against the way Llama writes and the way people write.
Read the score
You get a number from 0 to 100 and a plain read on how likely AI was involved.
What gives Llama away
Meta's Llama models are open-weight, which means they sit behind a huge range of chatbots, writing tools and assistants. Wherever it runs, the output shares the familiar marks of a large language model: even sentence lengths, safe word choices, and smooth, well-formed paragraphs.
Human writing is bumpier and less uniform. Our Llama AI detector is trained on Llama output next to human writing, so it reads that steady rhythm rather than the meaning, whether the text came from Llama directly or an app built on top of it.
How accurate is this Llama AI detector?
On clean test text it is right most of the time, comfortably above nine in ten. Real writing is messier, so treat the score as a strong hint, not a fact. No detector is certain, whatever its marketing says.
Short text and edited drafts are the weak spots. Because Llama is so often fine-tuned and customized, some apps produce output that drifts from the patterns the detector knows best.
Llama 3 and Llama 4
The detector covers the recent Llama generations, including Llama 3, 3.1 and 3.3, and the Llama 4 models released in 2025. Because Llama is open and widely fine-tuned, the exact fingerprint varies more than with closed models, so weigh borderline scores with that in mind.
- Feb 2023 Llama 1 (research release)
- Jul 2023 Llama 2
- Apr 2024 Llama 3
- Jul 2024 Llama 3.1 (including 405B)
- Sep 2024 Llama 3.2
- Dec 2024 Llama 3.3
- Apr 2025 Llama 4 (Scout, Maverick)
Where your text goes
The check happens in memory on our own server. As soon as you have a score, your text is dropped. No logs, no database, no training set.
There is no account holding a history of your checks either.
Llama AI detector FAQ
Is the Llama AI detector free?
Yes. The whole tool is free, with no account and no cap on how many checks you run.
Does it work on Llama 4?
Yes. It reads output across the recent Llama generations. The newest releases are harder to flag, so weigh borderline scores carefully.
What about apps built on Llama?
It still works, but heavily fine-tuned apps can drift from Llama's usual patterns, which makes some cases harder to call.
Can I upload a file or a link?
Yes. Upload a Word or PDF file, or paste a web address, and we'll pull the text out for you.
Does it work on ChatGPT or Claude too?
Yes. The same model covers ChatGPT, Claude and others. For general use, try the main AI detector.