
Learning
what_are_embeddings
A free book explaining how AI represents things as numbers
★ 1.1k
January 2026
Not stated
Learning
What it does
A thorough treatment of embeddings - the numerical representations underpinning modern search, recommendation and language models - covering the historical progression from TF-IDF through to current practice, with accompanying notebook code. Available as a website or PDF. It is written for people with a machine learning background and uses the terminology directly; this is reading material rather than software.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals

Before you start
- Setup difficultySome setup needed
- Command lineNot required
- API keyNot required
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
what_are_embeddings FAQ
- Is what_are_embeddings free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use what_are_embeddings?
- You install it like a normal desktop app. No command line involved.
- Does what_are_embeddings work on a phone?
- No. It needs a computer.
- Can I use what_are_embeddings commercially?
- The project does not state a clear licence, so commercial use cannot be confirmed here. Check the official page or ask the author before using it at work.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| what_are_embeddings (this page) | Not needed | Not needed | Yes | No | Not verified |
| introtodeeplearning | Not needed | Not needed | Yes | No | Yes |
| groundhog | Required | Required | Yes | No | Yes |
| Mr.-Ranedeer-AI-Tutor | Not needed | Not needed | No | No | Not verified |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.