Khan Academy was the brand that ChatGPT, Claude, Gemini and Perplexity named most often. Khan Academy appeared in 120 of 288 answers (41.7%) measured on October 28, 2026. Coursera came next at 71 of 288 (24.7%). Khan Academy was named first more often than any other brand, in 58 of 288 answers. Google AI Overviews appeared on 69 of 72 searches (95.8%).
RESEARCH · Published June 22, 2026 · Updated November 11, 2026
EdTech Index 2.0: Khan Academy Named in 41.7% of Answers
288
AI answers analyzed across ChatGPT, Claude, Gemini and Perplexity
41.7%
of answers named Khan Academy, the most-named (120 of 288)
28
tracked brands named at least once (of 33)
95.8%
of Google searches showed an AI Overview (69 of 72)
Version 2. This version replaces the first version of this study, first published June 22, 2026. It uses measured counts, so the two versions are not comparable. Version 2 asks 24 questions three times each on ChatGPT, Claude, Gemini and Perplexity (288 answers) and adds Google AI Overviews. Every rate comes with its count and a 95% interval.
What the data shows
01
120/288 (41.7%)
Khan Academy appeared in 120 of 288 four-engine answers (CI 36.1–47.4%). Coursera appeared in 71 of 288 (24.7%, CI 20–29.9%). The intervals do not overlap.
02
58/288 (20.1%)
Khan Academy was the first brand named in 58 of 288 answers, more than any other tracked brand. Average first position: 2.1.
03
69/72 (95.8%)
Google AI Overviews appeared on 69 of 72 searches (CI 88.5–98.6%). On the other 3, no overview was shown.
04
23/69 (33.3%)
Khan Academy was the brand named most often in AI Overviews, at 23 of 69, followed by Coursera at 16 of 69 (23.2%). In the four-engine set, Khan Academy was named in 120 of 288 answers (41.7%).
05
44/288 (15.3%)
en.wikipedia.org was cited in 44 of 288 grounded four-engine answers, with 61 of 2,514 citations (2.4%). coursera.org came second with 48 citations in 41 answers (14.2%).
06
43/288 (14.9%)
Coursera's own domains were cited in 43 of 288 grounded answers (14.9%), more than any other tracked name. Khan Academy followed at 18 of 288. In Google AI Overviews, MagicSchool's site was cited in 5 of 69 overviews. 10 tracked names had no own-site citation.
Appearance rate across 288 four-engine answers. The bar is the 95% confidence interval; overlapping bars cannot be told apart at this sample size.
Which brands AI engines name
Khan Academy
41.7%
Coursera
24.7%
Quizlet
19.4%
Chegg
18.4%
edX
15.3%
Photomath
13.5%
Udemy
10.4%
Codecademy
8.7%
MagicSchool
8.3%
Western Governors University
8.3%
Google Career Certificates
8.0%
Duolingo
7.3%
Guild
6.6%
Brisk Teaching
6.3%
Eduaide.AI
6.3%
| # | Name | Named in | Appearance rate | 95% interval |
|---|---|---|---|---|
| 1 | Khan Academy | 120/288 | 41.7% | 36.1–47.4% |
| 2 | Coursera | 71/288 | 24.7% | 20.0–29.9% |
| 3 | Quizlet | 56/288 | 19.4% | 15.3–24.4% |
| 4 | Chegg | 53/288 | 18.4% | 14.4–23.3% |
| 5 | edX | 44/288 | 15.3% | 11.6–19.9% |
| 6 | Photomath | 39/288 | 13.5% | 10.1–18.0% |
| 7 | Udemy | 30/288 | 10.4% | 7.4–14.5% |
| 8 | Codecademy | 25/288 | 8.7% | 5.9–12.5% |
| 9 | MagicSchool | 24/288 | 8.3% | 5.7–12.1% |
| 10 | Western Governors University | 24/288 | 8.3% | 5.7–12.1% |
| 11 | Google Career Certificates | 23/288 | 8.0% | 5.4–11.7% |
| 12 | Duolingo | 21/288 | 7.3% | 4.8–10.9% |
| 13 | Guild | 19/288 | 6.6% | 4.3–10.1% |
| 14 | Brisk Teaching | 18/288 | 6.3% | 4.0–9.7% |
| 15 | Eduaide.AI | 18/288 | 6.3% | 4.0–9.7% |
The full list
Own-domain citation is the share of 288 grounded answers that cited the official domains of each name (subdomains included). Citation share is of all 2,514 citations.
| # | Brand | Named in | Appearance rate | 95% interval | First mention | Own-domain citation | Citation share |
|---|---|---|---|---|---|---|---|
| 1 | Khan Academy | 120/288 | 41.7% | 36.1–47.4% | 2.1 | 6.3% (18/288) | 0.8% |
| 2 | Coursera | 71/288 | 24.7% | 20–29.9% | 1.9 | 14.9% (43/288) | 2.1% |
| 3 | Quizlet | 56/288 | 19.4% | 15.3–24.4% | 2.4 | 3.1% (9/288) | 0.4% |
| 4 | Chegg | 53/288 | 18.4% | 14.4–23.3% | 1.5 | 4.5% (13/288) | 0.5% |
| 5 | edX | 44/288 | 15.3% | 11.6–19.9% | 2.1 | 4.2% (12/288) | 0.5% |
| 6 | Photomath | 39/288 | 13.5% | 10.1–18% | 3.1 | 1.4% (4/288) | 0.2% |
| 7 | Udemy | 30/288 | 10.4% | 7.4–14.5% | 3.4 | 2.1% (6/288) | 0.3% |
| 8 | Codecademy | 25/288 | 8.7% | 5.9–12.5% | 2 | 2.8% (8/288) | 0.4% |
| 9 | MagicSchool | 24/288 | 8.3% | 5.7–12.1% | 1.3 | 1% (3/288) | 0.1% |
| 10 | Western Governors University | 24/288 | 8.3% | 5.7–12.1% | 1 | 4.2% (12/288) | 0.5% |
| 11 | Google Career Certificates | 23/288 | 8% | 5.4–11.7% | 1.9 | 3.1% (9/288) | 0.4% |
| 12 | Duolingo | 21/288 | 7.3% | 4.8–10.9% | 1.6 | 1.7% (5/288) | 0.2% |
| 13 | Guild | 19/288 | 6.6% | 4.3–10.1% | 1 | 3.8% (11/288) | 0.5% |
| 14 | Brisk Teaching | 18/288 | 6.3% | 4–9.7% | 3.6 | 2.1% (6/288) | 0.2% |
| 15 | Eduaide.AI | 18/288 | 6.3% | 4–9.7% | 2.8 | 2.8% (8/288) | 0.3% |
| 16 | Brainly | 17/288 | 5.9% | 3.7–9.2% | 3.7 | 2.4% (7/288) | 0.3% |
| 17 | Curipod | 15/288 | 5.2% | 3.2–8.4% | 4.8 | 0.3% (1/288) | 0% |
| 18 | Diffit | 15/288 | 5.2% | 3.2–8.4% | 3.4 | 0.3% (1/288) | 0% |
| 19 | Course Hero | 14/288 | 4.9% | 2.9–8% | 3.5 | 1% (3/288) | 0.1% |
| 20 | Busuu | 13/288 | 4.5% | 2.7–7.6% | 1.5 | 1% (3/288) | 0.1% |
| 21 | Synthesis Tutor | 13/288 | 4.5% | 2.7–7.6% | 2.2 | 0.7% (2/288) | 0.1% |
| 22 | Schoolhouse.world | 11/288 | 3.8% | 2.1–6.7% | 1.8 | 1% (3/288) | 0.1% |
| 23 | SchoolAI | 9/288 | 3.1% | 1.7–5.8% | 5.6 | 0% (0/288) | 0% |
| 24 | LinkedIn Learning | 6/288 | 2.1% | 1–4.5% | 4.3 | 0% (0/288) | 0% |
| 25 | Outlier | 5/288 | 1.7% | 0.7–4% | 1.8 | 0.3% (1/288) | 0% |
The top eight, side by side
| # | Name | Appearance rate | Answers and interval | Other measures |
|---|---|---|---|---|
| 1 | Khan Academy | 41.7% | 120/288 answers · 95% CI 36.1–47.4% | first-mention position: 2.1; owned-domain citation (18/288): 6.3%; citation share: 0.8% |
| 2 | Coursera | 24.7% | 71/288 answers · 95% CI 20–29.9% | first-mention position: 1.9; owned-domain citation (43/288): 14.9%; citation share: 2.1% |
| 3 | Quizlet | 19.4% | 56/288 answers · 95% CI 15.3–24.4% | first-mention position: 2.4; owned-domain citation (9/288): 3.1%; citation share: 0.4% |
| 4 | Chegg | 18.4% | 53/288 answers · 95% CI 14.4–23.3% | first-mention position: 1.5; owned-domain citation (13/288): 4.5%; citation share: 0.5% |
| 5 | edX | 15.3% | 44/288 answers · 95% CI 11.6–19.9% | first-mention position: 2.1; owned-domain citation (12/288): 4.2%; citation share: 0.5% |
| 6 | Photomath | 13.5% | 39/288 answers · 95% CI 10.1–18% | first-mention position: 3.1; owned-domain citation (4/288): 1.4%; citation share: 0.2% |
| 7 | Udemy | 10.4% | 30/288 answers · 95% CI 7.4–14.5% | first-mention position: 3.4; owned-domain citation (6/288): 2.1%; citation share: 0.3% |
| 8 | Codecademy | 8.7% | 25/288 answers · 95% CI 5.9–12.5% | first-mention position: 2; owned-domain citation (8/288): 2.8%; citation share: 0.4% |
The four engines named the leading names at similar rates.
ChatGPT
72 asked · 72 returned · 72 grounded
Same questions, different answers
Khan Academy
47.2%
Coursera
30.6%
Quizlet
27.8%
Chegg
25.0%
edX
16.7%
Photomath
16.7%
Claude
72 asked · 72 returned · 72 grounded
Khan Academy
45.8%
Coursera
25.0%
edX
16.7%
Photomath
15.3%
Chegg
13.9%
Udemy
12.5%
Gemini
72 asked · 72 returned · 72 grounded
Khan Academy
38.9%
Quizlet
25.0%
Coursera
23.6%
Chegg
13.9%
edX
13.9%
Photomath
13.9%
Perplexity
72 asked · 72 returned · 72 grounded
Khan Academy
34.7%
Chegg
20.8%
Coursera
19.4%
Quizlet
13.9%
edX
13.9%
Codecademy
9.7%
Google AI Overviews were captured through 72 U.S. desktop searches and scored only where an overview appeared, so five-engine figures use 288 + 69 = 357 answers.
The fifth engine
96%
Trigger rate: 69 of 72 searches
Google AI Overviews appeared on 69 of 72 searches (95.8%, CI 88.5–98.6%). The other 3 searches showed no overview. Within the 69 overviews, Khan Academy was named in 23 (33.3%), Coursera was named in 16 (23.2%), Quizlet was named in 13 (18.8%), edX was named in 11 (15.9%). youtube.com was the most-cited source, with 32 citations and an appearance in 23 of 69 overviews.
| Five-engine rank | Name | Five-engine rate | Four-engine rank |
|---|---|---|---|
| 1 | Khan Academy | 40.1% | 1 |
| 2 | Coursera | 24.4% | 2 |
| 3 | Quizlet | 19.3% | 3 |
| 4 | Chegg | 17.1% | 4 |
| 5 | edX | 15.4% | 5 |
| 6 | Photomath | 12.9% | 6 |
| 7 | Udemy | 10.4% | 7 |
| 8 | MagicSchool | 8.4% | 9 |
| 9 | Western Governors University | 8.4% | 10 |
| 10 | Codecademy | 7.8% | 8 |
Who each question surfaces first
Six questions from the set. Each tile uses that question's own four-engine answers as the denominator.
| Question | Leader | Next | AI Overview |
|---|---|---|---|
| Q01 · 12 answers | Khan Academy 100.0% | Photomath 100.0%; Synthesis Tutor 91.7% | AI Overview shown on 3 of 3 searches |
| Q02 · 12 answers | Duolingo 100.0% | Busuu 50.0% | AI Overview shown on 3 of 3 searches |
| Q03 · 12 answers | Coursera 100.0% | Udemy 100.0%; Google Career Certificates 41.7% | AI Overview shown on 3 of 3 searches |
| Q04 · 12 answers | Chegg 100.0% | Khan Academy 91.7%; Quizlet 58.3% | AI Overview shown on 3 of 3 searches |
| Q05 · 12 answers | MagicSchool 100.0% | Khan Academy 91.7%; Diffit 75.0% | AI Overview shown on 3 of 3 searches |
| Q06 · 12 answers | Khan Academy 75.0% | Schoolhouse.world 41.7%; Chegg 25.0% | AI Overview shown on 3 of 3 searches |
The four engines produced 2,514 citations in total. en.wikipedia.org was cited most often, with 61 citations (2.4%) across 44 answers. Next came coursera.org (48), learn.org (43), youtube.com (32), preply.com (31), study.com (28).
Four AI engines · share of 288 grounded answers
Most-cited domains
en.wikipedia.org
15.3%
coursera.org
14.2%
youtube.com
11.1%
preply.com
9.4%
reddit.com
9.0%
brighterly.com
8.0%
learn.org
7.6%
pcmag.com
5.9%
newsweek.com
4.9%
topconsumerreviews.com
4.5%
Google AI Overviews · share of 69 overviews
youtube.com
33.3%
reddit.com
14.5%
preply.com
7.2%
magicschool.ai
7.2%
coursera.org
5.8%
workforceedge.com
4.3%
appily.com
4.3%
blog.coursera.org
4.3%
collegeraptor.com
4.3%
freecodecamp.org
4.3%
Citation share by source type
Share of all citations by the type of site cited. Source types were reclassified on October 29, 2026. 'Company / brand sites' now covers only the official sites of companies, brands and schools; publishers, directories, trade bodies and other sites have their own types, and sites that could not be placed are 'Other / unclassified'.
| Source type | Four AI engines (of 2,514 citations) | Google AI Overviews (of 184 citations) |
|---|---|---|
| Company / brand sites | 1,464 (58.2%) | 95 (51.6%) |
| Review / comparison publishers | 409 (16.3%) | 7 (3.8%) |
| Directories / rankings | 168 (6.7%) | 10 (5.4%) |
| Institutions / trade bodies | 108 (4.3%) | 10 (5.4%) |
| Community / social | 105 (4.2%) | 53 (28.8%) |
| General news / business press | 81 (3.2%) | 4 (2.2%) |
| Reference | 69 (2.7%) | 0 (0%) |
| Trade / specialist press | 46 (1.8%) | 2 (1.1%) |
| Other / unclassified | 27 (1.1%) | 0 (0%) |
| Research / data providers | 22 (0.9%) | 0 (0%) |
| Official / government | 15 (0.6%) | 3 (1.6%) |
What AI answers
Which brand do AI engines name most often?
Khan Academy, named in 120 of 288 four-engine answers (41.7%, CI 36.1–47.4%). Coursera was second at 71 of 288 (24.7%).
Which brand is named first most often?
Khan Academy was the first brand named in 58 of 288 answers, with an average first position of 2.1.
How often do Google AI Overviews appear for these questions?
An overview appeared on 69 of 72 searches (95.8%, CI 88.5–98.6%). Within those 69 overviews, Khan Academy was named most often, in 23 (33.3%).
Which sources do the engines cite?
Across 2,514 four-engine citations, en.wikipedia.org was cited most (61 citations, in 44 of 288 grounded answers), followed by coursera.org (48 citations).
Do the four engines agree?
Only in part. Khan Academy was named on every engine, from 34.7% on Perplexity to 47.2% on ChatGPT. The widest gap among tracked names was Quizlet, from 11.1% on Claude to 27.8% on ChatGPT.
How this study was measured
24 questions × 3 runs each × 4 AI engines = 288 answers + 72 Google searches · 69 AI Overviews
24 questions, each asked 3 times on each engine, measured October 28, 2026. Market: United States, English. The destination site was not mentioned to any engine. Gemini answers were produced by gemini-3.6-flash; every Gemini answer in this report used that one model. All 72 Gemini answers had search sources. Brands count as named when they appear in the answer text; products and name variants roll up to the tracked name. Longer names take precedence over shorter overlapping ones, and common words count only in context. Unicode apostrophes and dashes are normalized.
| Engine | Model IDs called | Asked | Returned | Grounded |
|---|---|---|---|---|
| ChatGPT | gpt-5-mini | 72 | 72 | 72 |
| Claude | claude-sonnet-5-5 | 72 | 72 | 72 |
| Gemini | gemini-3.6-flash | 72 | 72 | 72 |
| Perplexity | sonar-pro | 72 | 72 | 72 |
| Google AI Overviews | DataForSEO Google SERP (live, advanced) | 72 | 69 shown | 69 |
Own-domain citations count a domain plus all its subdomains, with the same rule in every table.
Definitions
- Appearance rate: answers naming the brand ÷ answers returned, with Wilson 95% intervals.
- First mention: average order in which the brand first appears (1 = first).
- Own-domain citation: grounded answers citing the brand's domains ÷ grounded answers.
- Citation share: citations to the brand's domains ÷ all citations.
Limits
- Measured on one day, October 28, 2026. Each engine answered 24 questions 3 times. Answers came from each engine's API (model IDs above); the consumer apps can answer differently.
- Only 33 tracked brands were scored. Untracked names that appeared often were not scored, including Tutor.com (27), Varsity Tutors (26), Anki (22), The Princeton Review (22), Preply (19).
- AI Overview figures are based on only 69 overviews, so estimates for individual brands are less precise than the four-engine figures.
- Reports describe what the engines said, attributed to the engines. They make no judgement about the people or organizations named and are not legal or financial advice.
- Some answers were asked again on October 28, 2026 after a storage error. The earlier texts are kept in the evidence archive and are not used in the counts.
- 2 questions name brands ("Coursera vs Udemy: which is better for a career change?", "Is Chegg worth it?"), so those counts include up to 12 answers to each. Without them, Khan Academy and Coursera are still the top two.
- Intervals treat each answer as independent, so they understate uncertainty for the 24 repeated questions.
- Corrected October 29, 2026: own-domain citation now uses each name's official domains (subdomains included), listed in the evidence file entity_rollups.csv. Names without a resolvable official site count zero.
Appendix: The 24 questions
Questions marked "Core question" are the original study questions, asked word for word. The others are added neutral questions.
| # | Question | Group | Source |
|---|---|---|---|
| 01 | What is the best AI math tutor for kids? | EdTech AI Visibility Index 2026 | Core question |
| 02 | What is the best app to learn a language? | EdTech AI Visibility Index 2026 | Core question |
| 03 | Coursera vs Udemy: which is better for a career change? | EdTech AI Visibility Index 2026 | Core question |
| 04 | Is Chegg worth it? | EdTech AI Visibility Index 2026 | Core question |
| 05 | What are the best AI tools for teachers? | EdTech AI Visibility Index 2026 | Core question |
| 06 | What is the best online tutoring service for high school students? | EdTech AI Visibility Index 2026 | Core question |
| 07 | What is the cheapest way to get an online bachelor's degree? | EdTech AI Visibility Index 2026 | Core question |
| 08 | What are the best online courses for learning to code? | EdTech AI Visibility Index 2026 | Core question |
| 09 | What are the best employer-paid education benefit programs? | EdTech AI Visibility Index 2026 | Core question |
| 10 | What are the best study apps for college students? | EdTech AI Visibility Index 2026 | Core question |
| 11 | What are the best online certificate programs for getting a job in tech? | EdTech AI Visibility Index 2026 | Core question |
| 12 | What is the best homework help website? | EdTech AI Visibility Index 2026 | Core question |
| 13 | Which AI tutoring platforms publish information about child privacy and parental controls? | EdTech AI Visibility Index 2026 | Added question |
| 14 | Which language learning apps offer live conversation practice? | EdTech AI Visibility Index 2026 | Added question |
| 15 | Which online learning platforms offer college-credit courses? | EdTech AI Visibility Index 2026 | Added question |
| 16 | Which homework help services explain solutions step by step? | EdTech AI Visibility Index 2026 | Added question |
| 17 | Which classroom AI tools support lesson planning and assessment? | EdTech AI Visibility Index 2026 | Added question |
| 18 | Which online tutoring services offer subject-specific high school tutoring? | EdTech AI Visibility Index 2026 | Added question |
| 19 | Which accredited institutions offer competency-based online bachelor's degrees? | EdTech AI Visibility Index 2026 | Added question |
| 20 | Which coding education platforms offer free introductory courses? | EdTech AI Visibility Index 2026 | Added question |
| 21 | Which education benefit providers work with US employers? | EdTech AI Visibility Index 2026 | Added question |
| 22 | Which study apps support flashcards and spaced repetition? | EdTech AI Visibility Index 2026 | Added question |
| 23 | Which career certificate platforms publish completion and employment outcomes? | EdTech AI Visibility Index 2026 | Added question |
| 24 | Which online test-preparation platforms cover the SAT and ACT? | EdTech AI Visibility Index 2026 | Added question |
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