Dolos vs Turnitin AI Writing Detection
Dolos
dolos.ugent.beTurnitin AI Writing Detection
turnitin.comSide by side
| Figure | Dolos | Turnitin AI Writing Detection |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 2 | 1 |
| Spec score · Plagiarism Checkers | 9.0 (#5) | 6.7 (#29) |
| Headquarters | Ghent, Belgium | Oakland, California, United States |
| Integrations | Dolos provides a JSON API for automated integration with exercise platforms such as Dodona. | Turnitin Feedback Studio's LTI 1.3 integrations include platforms such as Blackboard, Canvas, and Moodle; Microsoft Teams AI writing detection requires the Feedback Studio integration and an Originality license. |
| Languages | Dolos uses Tree-sitter parsers and supports common languages including Bash, C, C++, C#, Elm, JavaScript, Java, PHP, Python, and TypeScript out of the box. | Turnitin's AI writing detection guide lists English, Spanish, Japanese, and Arabic as supported languages. |
| Purpose | Dolos detects plagiarism by finding similarities between source code submissions. | The detector helps educators identify text that may have been generated or modified by AI writing tools. |
| Support | General questions and support are handled through GitHub discussions, while bugs and feature requests use GitHub issues. | Users who need access should contact their Turnitin administrator, who can speak with the account manager; technical support cannot enable the feature. |
Plans
Turnitin AI Writing Detection
- Turnitin AI Writing Detection (institutional license/add-on)Priced on request
In their own words
Dolos
Dolos is a free, open-source tool for finding similarities between source-code submissions, particularly for teachers reviewing tests, exams, and exercises where collaboration may be allowed in small groups. Its analysis process tokenizes files, fingerprints token sequences, indexes matches, and produces reports. For each file pair, reports include similarity, total overlap, and the longest matching fragment. Dolos uses Tree-sitter parsers and supports languages including Bash, C, C++, C#, Elm, JavaScript, Java, PHP, Python, and TypeScript. The web app accepts ZIP files and detects languages from file extensions; in mixed-language archives, it analyzes only the dominant language unless a language is selected. Its public API accepts ZIP submissions up to 10 MB, with the CLI or library recommended for larger submissions. Analyses can also run locally, with results displayed in a browser, or on a self-hosted server. The free web app is hosted on Ghent University servers in Belgium. Dolos provides a JSON API for integrations such as Dodona and lists CSV as a report export format.
Turnitin AI Writing Detection
Turnitin AI Writing Detection has no write-up on Specifiction yet; its figures are above.