Moodle core, the software you download from moodle.org, contains no AI writing detection. It contains no plagiarism detection either. Both are handled through the plugin ecosystem, which is how Moodle handles almost every non-core function. If your institution runs Moodle and you have access to an AI detector inside a course, someone in IT or academic affairs added it.
Quick Answer
No, Moodle does not include AI detection in its core distribution. The Moodle platform is open source and ships as an LMS for course delivery, assignment submission, quizzes, and gradebooks. AI writing detection is available through third-party plugins listed in the Moodle plugin directory, or through commercial integrations like Turnitin, Copyleaks, and Proofademic that connect via LTI.
The distinction between what Moodle ships and what schools add is not a small one. It shapes procurement, faculty training, and the appeals process when a student contests a flag.
The Short Answer
This is different from the way Canvas, Blackboard, and Brightspace handle the question. We have written separately on Canvas, Blackboard, and Schoology. In each case the answer is similar in outcome. None of them ship a detector. But Moodle is unusual in that even the plagiarism side is a plugin, not a bundled feature.
A plugin that will not disclose its false positive rate is not one you should be scoring student work with.
The Working Educators editorial position on detector selection
What Moodle Ships With
A default Moodle install gives instructors assignment submission with file uploads and inline text, quiz creation, forums, gradebook, competency tracking, and a range of activity types. The Moodle documentation lists every core module, and no AI writing detector appears in any current release.
What Moodle does provide, and what sometimes gets confused with detection, is the audit trail on assignment submissions. Instructors can see when a file was uploaded, whether it was resubmitted, and in some configurations whether text was pasted into a textarea versus typed. That is process evidence, not authorship evidence. It does not tell you whether the words themselves were generated by a model.
For institutions that want authorship signal, the path is always the same. Install a plugin.
Third-Party AI Detection Plugins
The Moodle plugin directory lists community-contributed and vendor-published extensions. Search the directory for AI detection and a handful of options appear, ranging from free experimental modules to paid enterprise integrations. Quality varies. Some are hobby projects with no accuracy validation. Others are professional integrations with published methodology.
The general caution we would give any Moodle administrator evaluating a detection plugin: ask the vendor for a false positive rate figure and the methodology behind it. Any detector marketed for academic use should publish something. The 2023 Stanford study Liang et al. in Cell Patterns found 61.3 percent false positive rates on non-native English writing samples across multiple detectors, which is the reason methodology transparency matters. A plugin that will not disclose its FPR is not one you should be scoring student work with.
For teachers weighing detector choices generally, our guide to evaluating detector accuracy walks through the questions to ask.
Turnitin and Copyleaks Integrations
The two most common commercial integrations on Moodle are Turnitin and Copyleaks. Both connect through LTI or a dedicated Moodle plugin. Turnitin has published its own accuracy figures in the Turnitin AI writing FAQ, claiming under one percent document-level false positive rates and around four percent at the sentence level. It is worth noting that Vanderbilt disabled Turnitin AI detection on its Brightspace deployment in August 2023, citing methodology and false-positive concerns in a public statement, and reasonable institutions have made different calls since.
Copyleaks markets a similar integration with a 99 percent accuracy claim on its own testing. The claim is not independently peer reviewed. As with any vendor number, treat it as a starting point rather than a finding.
A newer entrant in this category is Proofademic, which offers an LTI integration and publishes its academic-context FPR in a May 2026 methodology paper. Reported document-level FPR is 0.2 percent overall and 0.5 percent on non-native English writing. Proofademic also now bundles a plagiarism checker alongside its AI detector, which reduces the number of separate integrations Moodle admins have to maintain.
Choosing an Integration
The right integration for a Moodle site depends on what the institution already pays for, what accuracy figures the academic integrity office is willing to defend in an appeal, and whether the workflow needs plagiarism detection alongside AI detection or just one of the two.
For institutions with existing Turnitin contracts, the Turnitin Moodle plugin is the path of least resistance and requires no new procurement. For institutions building fresh, comparing published methodology matters. Our 2026 detector roundup looks across the current market, and our comparison of Proofademic and Turnitin focuses on the trade-offs specific to that pairing.
One last point that comes up often: no Moodle plugin, however good, replaces the classroom judgment that most flagged submissions actually require. Our position on this is that detectors work as one signal among several, and the assignment design and follow-up conversation carry more weight than any percentage on a screen. The framework in our piece on designing AI-resistant assignments pairs well with any detector plugin you install.
Frequently Asked Questions
Is there a free AI detection plugin for Moodle?▼
Yes, several free plugins appear in the Moodle plugin directory, but few disclose methodology or accuracy figures. Free does not mean reliable for academic scoring, and we would not use one without a published false positive rate.
Does the Turnitin Moodle plugin include AI detection?▼
Yes, if your Turnitin license includes the AI writing detection feature. It is enabled at the institutional level and appears on the Similarity Report alongside the plagiarism score.
Can Moodle detect ChatGPT without any plugins?▼
No. Moodle core has no AI writing detection. Anything that flags model-generated writing has to be added through a plugin or LTI integration.
Does Proofademic integrate with Moodle?▼
Yes, Proofademic offers an LTI integration that works with Moodle alongside Canvas, Blackboard, and Brightspace. It bundles AI detection with a plagiarism checker on paid plans.
What did Vanderbilt do differently on Brightspace?▼
Vanderbilt disabled Turnitin's AI detection feature in August 2023, citing false positive concerns. The decision applied to Brightspace but the reasoning generalizes to any LMS. Some institutions have re-enabled since as vendor methodology improved.
The Bottom Line
Moodle does not detect AI writing on its own. That is by design, and it is consistent with how the platform handles most functions outside the LMS core.
What matters is the plugin or LTI integration your institution picks. Ask for methodology, ask for a published false positive rate, and pair whatever tool you land on with assignment design and follow-up practice that does not depend on a percentage score to hold up. Our take on academic-fit detection sits alongside the Turnitin and Copyleaks options, and the choice among them depends on the trade-offs your integrity office is prepared to defend.
