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CheckforAI is a free online AI content detection tool that analyzes textual features to identify content generated by models such as GPT, helping users uphold academic integrity and content authenticity.
CheckforAI is a free online tool focused on detecting whether text was generated by AI, designed to identify content produced by mainstream models such as GPT and Claude.
The tool claims to use hybrid-model technology with a detection accuracy of up to 95%, and it outperforms some similar tools in several benchmarks.
CheckforAI is a free, nonprofit service; users can use its core detection features without paying.
It supports direct text input as well as uploading files in formats such as PDF and DOCX, and supports batch processing.
According to official information, the service ceased operations at the end of 2024, and the team has moved on to new projects.
Primarily suitable for teachers, researchers, content reviewers, corporate staff, and developers who need to verify content originality.