AI Tool Comparison

Perusall vs ChatGPT

An objective side-by-side comparison based on global rankings, AI scores, and monthly user data.

Higher Ranked

Perusall

Research & Search

AI-powered collaborative annotation platform for academic reading.

AI Score20.6 / 100

#672

Global Rank

–

Monthly Users

Higher Ranked

Writing & Chat

The world's most popular AI chatbot for writing, coding, research, and everyday tasks.

AI Score97.4 / 100

Global Rank

400M+

Monthly Users

Genuinely free when using uploaded materials or open educational resources
Institutional Basic/Premium licenses eliminate per-student fees entirely for adopted materials
Courses set up before July 6, 2026 remain unaffected by the new pricing model

New courses at unlicensed institutions after July 6, 2026 can no longer offer a $0 Student Access Fee option
Instructors must now choose a $5-25 per-student platform fee for new courses without an institutional license
A real shift away from the previously free model specifically for unlicensed institution new-course setups

Largest user base and ecosystem of any AI assistant, with the most third-party integrations
Genuinely broad capability across writing, coding, research, and file analysis
Custom GPTs allow tailoring the assistant to specific repeated tasks
Frequent model updates keep it competitive on raw capability

Free tier has usage limits and access to a lower-tier model than paid plans
Can produce confident-sounding but incorrect information, especially without browsing enabled
Breadth can mean less depth than a tool purpose-built for one specific workflow
Data usage and training policies require attention for sensitive or regulated work