# Online course platforms: which vendors AI models recommend (September 2026)

Source: Memetik Index, https://www.memetik.ai/index/course-platforms
Field: Creator economy. Edition: 2026-09. Run: 2026-09-02.
Method: 5 fixed buyer prompts sent once each to 10 current models (GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna, Claude Opus 5, Claude Sonnet 5, Claude Fable 5, Gemini 3.6 Flash, Gemini 3.5 Flash, Sonar Pro, Sonar Reasoning Pro) via their APIs with web search enabled. 50 answers. Answer share = fraction of answers naming the vendor. Named first = fraction where it was the first tracked vendor named.

**Kajabi leads** with 100% answer share (named in 50 of 50 answers) and was named first in 30%. Thinkific follows at 96%. 15 vendors were named at least once.

## Answer share

| # | Vendor | Answer share | Named first | Mentions | Models |
|---|---|---|---|---|---|
| 1 | Kajabi | 100% | 30% | 50/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 2 | Thinkific | 96% | 28% | 48/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 3 | Teachable | 80% | 20% | 40/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 4 | Udemy | 58% | 4% | 29/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 5 | Podia | 52% | 2% | 26/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Perplexity, Sonar Reasoning Pro |
| 6 | Circle | 48% | 2% | 24/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 7 | LearnWorlds | 44% | 2% | 22/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 8 | Skool | 42% | 0% | 21/50 | GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity |
| 9 | Mighty Networks | 42% | 0% | 21/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 10 | Systeme.io | 22% | 0% | 11/50 | Claude Opus 5, Claude Fable 5, Gemini, Gemini 3.5 Flash |
| 11 | Maven | 20% | 12% | 10/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude Opus 5, Claude, Claude Fable 5, Gemini, Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 12 | Gumroad | 14% | 0% | 7/50 | GPT-5.6 Sol, ChatGPT, GPT-5.6 Luna, Claude, Claude Fable 5 |
| 13 | Stan | 8% | 0% | 4/50 | Gemini, Gemini 3.5 Flash |
| 14 | Kartra | 6% | 0% | 3/50 | Gemini 3.5 Flash, Perplexity, Sonar Reasoning Pro |
| 15 | Whop | 2% | 0% | 1/50 | Sonar Reasoning Pro |

## By model

- **GPT-5.6 Sol** (OpenAI, gpt-5.6-sol, 5 answers): Kajabi 100%, Thinkific 80%, Teachable 80%, Podia 60%, Circle 40%
- **GPT-5.6 Terra** (OpenAI, gpt-5.6-terra, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Podia 40%, Udemy 20%
- **GPT-5.6 Luna** (OpenAI, gpt-5.6-luna, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Udemy 60%, Podia 60%
- **Claude Opus 5** (Anthropic, claude-opus-5, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Udemy 80%, Podia 80%
- **Claude Sonnet 5** (Anthropic, claude-sonnet-5, 5 answers): Kajabi 100%, Thinkific 80%, Teachable 80%, Udemy 60%, Podia 60%
- **Claude Fable 5** (Anthropic, claude-fable-5, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Udemy 80%, Skool 80%
- **Gemini 3.6 Flash** (Google, gemini-3.6-flash, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 100%, Circle 100%, Skool 80%
- **Gemini 3.5 Flash** (Google, gemini-3.5-flash, 5 answers): Kajabi 100%, Thinkific 100%, Circle 100%, Skool 80%, Systeme.io 80%
- **Sonar Pro** (Perplexity, sonar-pro, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Udemy 80%, Podia 80%
- **Sonar Reasoning Pro** (Perplexity, sonar-reasoning-pro, 5 answers): Kajabi 100%, Thinkific 100%, Teachable 80%, Udemy 80%, Podia 60%

## Sources the models cited

- youtube.com: 186
- storyflow.so: 65
- mihaelcacic.com: 44
- zapier.com: 43
- samcart.com: 29
- emailvendorselection.com: 27
- edubracket.com: 24
- circle.so: 21
- digistore24.com: 21
- guideflow.com: 20
- learnybox.com: 20
- teachable.com: 19
- devopscube.com: 19
- ddiy.co: 19
- ruzuku.com: 18

## Prompts

1. What is the best platform to sell an online course for a creator? Name specific products.
2. Which platform to sell an online course would you recommend to a creator in 2026?
3. Compare the top platform to sell an online course options right now.
4. I'm a creator and I need a platform to sell an online course. What should I use and why?
5. Best platform to sell an online course for selling a cohort-based course?

## Tracked but never named

None.

Raw answers: https://www.memetik.ai/index/course-platforms (every answer published in full). Chart image: https://www.memetik.ai/charts/course-platforms.png. Licence: CC BY 4.0, credit "Memetik Index".