Jules
Google's asynchronous coding agent — assign a task, get a pull request.
Visit Jules Free tier with daily task limits; higher limits via Google AI Pro and Ultra
What is Jules?
Jules is Google's background coding agent powered by Gemini. Connect a GitHub repo, describe a task, and it clones the code into a cloud VM, plans, makes the change, runs tests, and opens a pull request while you do something else.
Key features
- Asynchronous tasks that end in a pull request
- Runs in an isolated cloud VM with your dependencies
- Plans before it codes and shows the plan for approval
- Audio changelog summaries of what it did
- GitHub integration with branch and PR management
Pros
- Truly hands-off — assign and walk away
- Free tier is real, not a trial
- Plans are visible and editable before execution
Cons
- Task limits on the free tier are low
- Struggles with very large or unusual repo setups
- Less interactive than terminal agents when a task goes sideways
Best for
Developers clearing backlogs of small, well-defined tasksTeams already on Google AI plansTrying a background agent without paying
Alternatives to Jules
OpenAI Codex
4.7
OpenAI's cloud-based autonomous coding agent — built on GPT-5.6.
PaidBundled with ChatGPT Pro ($200/mo)
Released May 2026
Devin
4.2
The first AI software engineer — runs your codebase end-to-end.
PaidCore $20/mo (limited ACUs), Teams $500/mo
Released March 2024
Claude Code
4.7
Anthropic's terminal-based AI coding agent.
PaidRequires Claude API key (~$10-50/mo typical use)
Released February 2025