According to AlphaMoat, in September 2026 CS50.ai (cs50.ai) received 66,779 monthly visits (+8% MoM) — ranked #4,593 of 18,341 AI websites with traffic data, and #319 of 1,066 in Education & Research; its largest market is United States (38.0% of visits).
CS50.ai is Harvard CS50's custom ChatGPT version for students and instructors, offering conversational help in learning and teaching scenarios.
Provides a login portal for course participants.
| Month | Monthly visits | MoM |
|---|---|---|
| 2025-10 | 53.5K | +2.8% |
| 2025-11 | 68.9K | +28.8% |
| 2025-12 | 44.1K | -36.1% |
| 2026-01 | 62.4K | +41.6% |
| 2026-02 | 29.2K | -53.2% |
| 2026-03 | 108.2K | +270.6% |
| 2026-04 | 29.5K | -72.7% |
| 2026-05 | 25.4K | -14.0% |
| 2026-06 | 48.1K | +89.6% |
| 2026-07 | 107.8K | +124.1% |
| 2026-08 | 61.8K | -42.6% |
| 2026-09 | 66.8K | +8.0% |
According to AlphaMoat, CS50.ai (cs50.ai) received 66,779 visits (about 66.8K) in September 2026 (+8% month over month), ranking #4,593 of 18,341 AI websites with traffic data, and #319 in Education & Research.
Over the last 12 months, CS50.ai’s monthly visits went from 53.5K in October 2025 to 66.8K in September 2026 — up 24.9% overall; traffic peaked in March 2026 (108.2K).
In September 2026, CS50.ai’s largest markets by share of visits are United States 38.0%, UK 23.1%, India 13.1%.
In Education & Research, the other products with the most monthly visits are quizizz.com (42.7M), ZeroGPT (27.5M), GPTZero (17.5M), Gizmo (7.8M), Top Hat (7.0M).
Data month: 2026-09 · Visit figures are third-party traffic estimates aggregated monthly — best for scale and trends. Multiple domains of the same product are merged. See methodology.