Source: https://seerepo.com/r/Lightning-AI/pytorch-lightning
Markdown source: https://seerepo.com/r/Lightning-AI/pytorch-lightning.md
Description: Lightning-AI/pytorch-lightning is a Python repo with 138,949 lines written. pytorch-lightning is built with FastAPI.

# What's inside Lightning-AI/pytorch-lightning

Lightning-AI/pytorch-lightning is a Python repo with 138,949 lines written. pytorch-lightning is built with FastAPI. AI signed 0.1% of the 11,034 commits of pytorch-lightning.

Its description on GitHub: “Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.”

Python · Apache-2.0 · 31,446 stars · GitHub: https://github.com/Lightning-AI/pytorch-lightning

Read on November 7, 2026, at commit 84df182.

## More on this repo

- [What is pytorch-lightning built with?](https://seerepo.com/r/Lightning-AI/pytorch-lightning/built): pytorch-lightning is built with FastAPI.
- [How much of pytorch-lightning did AI write?](https://seerepo.com/r/Lightning-AI/pytorch-lightning/ai): AI signed 0.1% of the 11,034 commits of pytorch-lightning.

## In figures

- 138,949 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 271 source files: The same as the lines: product, tests, schemas and tooling. What’s generated doesn’t count.
- 329 test files: The files that test the code.
- 8 technologies: Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

## Frequently asked questions

### What is Lightning-AI/pytorch-lightning?

Lightning-AI/pytorch-lightning is a Python repo with 138,949 lines written. Its description on GitHub: “Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.”

The proof: [its page on GitHub](https://github.com/Lightning-AI/pytorch-lightning)

### What is pytorch-lightning built with?

pytorch-lightning is built with FastAPI.

The proof: [each service with its file and line](https://seerepo.com/r/Lightning-AI/pytorch-lightning/built)

### How much of pytorch-lightning did AI write?

AI signed 0.1% of the 11,034 commits of pytorch-lightning.

The proof: [the commits each tool signed](https://seerepo.com/r/Lightning-AI/pytorch-lightning/ai)

### What license does pytorch-lightning have?

pytorch-lightning is released under the Apache-2.0 license.

The proof: [its page on GitHub](https://github.com/Lightning-AI/pytorch-lightning)

### How many stars does pytorch-lightning have on GitHub?

pytorch-lightning had 31,446 stars on GitHub on November 7, 2026.

The proof: [its page on GitHub](https://github.com/Lightning-AI/pytorch-lightning)

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![Lightning-AI/pytorch-lightning on SeeRepo](https://seerepo.com/badge/Lightning-AI/pytorch-lightning.svg)](https://seerepo.com/r/Lightning-AI/pytorch-lightning?de=insignia)
```

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.