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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.

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What they share and what sets them apart

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.

Python187.8kRead on October 29, 2026, at commit 07212dfWhat is AutoGPT built with?
simstudioai

sim

Sim is the collaborative workspace to build, deploy, and monitor AI agents and workflows. Used by 100,000+ builders.

TypeScript30kRead on November 2, 2026, at commit df7709bWhat is sim built with?

In common

Only in AutoGPT

Only in sim

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
AutoGPT1,630,074 lines written4,321 code files
sim4,073,540 lines written10,948 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
AutoGPT15.7% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, CodeRabbit, Mistral Vibe, Factory, Codex, Devin, and Gemini CLI
sim5.3% of its commits signed by AIWith Claude Code, Cursor, and Codex
ActivityFrom GitHub and its history, on the day SeeRepo read it.
AutoGPTLast push October 29, 20269,377 commits187,811 stars
simLast push November 2, 20268,178 commits29,966 stars
TestsThe files that test the code, and the share of code files a test imports.
AutoGPT2,794 test files51.8% of its code files have a test that imports them
sim3,682 test files38.4% of its code files have a test that imports them

Frequently asked questions

Which is bigger, AutoGPT or sim?
sim, with 4,073,540 lines written in 10,948 code files; AutoGPT has 1,630,074 in 4,321.

The proof: simstudioai/sim's code at commit df7709b

Which has more GitHub stars, AutoGPT or sim?
AutoGPT, with 187,811 stars; sim has 29,966.

The proof: Significant-Gravitas/AutoGPT on GitHub

Which has more tests, AutoGPT or sim?
sim, with 3,682 test files; AutoGPT has 2,794.

The proof: simstudioai/sim's code at commit df7709b

Which was updated more recently, AutoGPT or sim?
sim: its last push was on November 2, 2026, and AutoGPT's on October 29, 2026.

The proof: simstudioai/sim's commits on GitHub

Which has more commits signed by AI, AutoGPT or sim?
AutoGPT: an AI signed 15.7% 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

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