AgentGPT
AgentGPT is the quickest way to watch goal-decomposition agents work without installing anything, and the GPL-3.0 source makes it a useful teaching artifact. The catch is that it is frozen in time: the repo was archived in January 2026 and the hosted app is still wired to 2023-era models.
Pros
- Runs in the browser with no install or API key wrangling for the free tier
- Full source under GPL-3.0, so it can be forked and self-hosted
- Templates make the goal-to-task pattern easy to see
- Clear published plan page rather than sales-call-only pricing
Cons
- GitHub repository archived in January 2026; last code push was April 2025
- Pricing page still sells GPT-3.5-Turbo and GPT-4 era capabilities
- Reworkd sunset its commercial data-extraction product, so the company's focus has moved on