Source: https://seerepo.com/compare/Significant-Gravitas/AutoGPT/vs/simstudioai/sim
Markdown source: https://seerepo.com/compare/Significant-Gravitas/AutoGPT/vs/simstudioai/sim.md
Description: AutoGPT and sim share 9 technologies: Next.js, React, FastAPI, Redis, Postgres, Stripe, PostHog, OpenAI, and Anthropic. AutoGPT is written in Python and sim in TypeScript.

# AutoGPT vs sim

AutoGPT and sim share 9 technologies: Next.js, React, FastAPI, Redis, Postgres, Stripe, PostHog, OpenAI, and Anthropic. AutoGPT is written in Python and sim in TypeScript.

- [Significant-Gravitas/AutoGPT](https://seerepo.com/r/Significant-Gravitas/AutoGPT): AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.
- [simstudioai/sim](https://seerepo.com/r/simstudioai/sim): Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

## What they share and what sets them apart

- In common: Next.js, React, FastAPI, Redis, Postgres, Stripe, PostHog, OpenAI, Anthropic
- Only in AutoGPT: Sentry, Claude, Replicate, Todoist, Google, Google Maps, ElevenLabs
- Only in sim: MongoDB, MCP, AWS S3, Resend

## Side by side

| | AutoGPT | sim |
|---|---|---|
| Size | 1,642,539 lines written, 4,327 code files | 4,073,540 lines written, 10,948 code files |
| Who writes it | 15.6% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, CodeRabbit, Mistral Vibe, Factory, Codex, Devin, and Gemini CLI | 5.3% of its commits signed by AI. With Claude Code, Cursor, and Codex |
| Activity | Last push November 3, 2026, 9,402 commits, 187,884 stars | Last push November 2, 2026, 8,178 commits, 29,966 stars |
| Tests | 2,826 test files. 52% of its code files have a test that imports them | 3,682 test files. 38.4% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, AutoGPT or sim?

sim, with 4,073,540 lines written in 10,948 code files; AutoGPT has 1,642,539 in 4,327.

The proof: [simstudioai/sim's code at commit df7709b](https://github.com/simstudioai/sim/tree/df7709bf5be6a42d51c5289364b98d32c4d38240)

### Which has more GitHub stars, AutoGPT or sim?

AutoGPT, with 187,884 stars; sim has 29,966.

The proof: [Significant-Gravitas/AutoGPT on GitHub](https://github.com/Significant-Gravitas/AutoGPT)

### Which has more tests, AutoGPT or sim?

sim, with 3,682 test files; AutoGPT has 2,826.

The proof: [simstudioai/sim's code at commit df7709b](https://github.com/simstudioai/sim/tree/df7709bf5be6a42d51c5289364b98d32c4d38240)

### Which was updated more recently, AutoGPT or sim?

AutoGPT: its last push was on November 3, 2026, and sim's on November 2, 2026.

The proof: [Significant-Gravitas/AutoGPT's commits on GitHub](https://github.com/Significant-Gravitas/AutoGPT/commits)

### Which has more commits signed by AI, AutoGPT or sim?

AutoGPT: an AI signed 15.6% of its commits, with Claude Code, GitHub Copilot, Cursor, CodeRabbit, Mistral Vibe, Factory, Codex, Devin, and Gemini CLI; in sim, 5.3%.

The proof: [the commits each tool signed in Significant-Gravitas/AutoGPT](https://seerepo.com/r/Significant-Gravitas/AutoGPT/ai)

## Sources

- Significant-Gravitas/AutoGPT: Read on November 3, 2026, at commit ef7f41c (https://github.com/Significant-Gravitas/AutoGPT/tree/ef7f41cea9dba465d6cdcc2c81ae8b6e3d5b77d8)
- simstudioai/sim: Read on November 2, 2026, at commit df7709b (https://github.com/simstudioai/sim/tree/df7709bf5be6a42d51c5289364b98d32c4d38240)

## 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.