AI stackHarnesses

Jules

Harness · terminal agent

The jobGoogle's async coding agent: works on GitHub tasks in a cloud VM, opens PRsVisit jules.google

Best forHanding off small GitHub tasks and reviewing the PRs later

Skip ifYour code isn't on GitHub, or you want models other than Gemini

Verified Oct 6, 20264 sourcesLive

Jules also appears in Alternatives to GitHub Copilot, Alternatives to OpenAI Codex

Editor notes

An async GitHub agent: assign a task, it works in a cloud VM and opens a PR. The free tier allows 15 tasks a day (3 at once); Google AI Pro and Ultra raise that to 100 and 300. Gemini models only, and paid tiers are tied to individual Google accounts.

Google's asynchronous coding agent that works on your GitHub repos.

Summary

Jules is Google's asynchronous coding agent: you give it tasks on a GitHub repository and it works in a cloud VM, then proposes changes as pull requests. It is powered by Gemini models and has a CLI (Jules Tools). Higher task limits come with Google AI Pro and Ultra subscriptions.

Key details

Surface	web/cloudCLI (Jules Tools)
Platforms	web
BYOK (Bring Your Own Key)	✗ No
MCP Support	✗ No
Agent Skills Support	✗ No
Open Source	✗ No(Proprietary)

Pricing

From the vendor's pricing pageVerified Oct 6, 2026

Plan	Price	Basis
Jules (free)	Free
Jules in Pro (Google AI Pro)	$20/mo	Billed monthly
Jules in Ultra (Google AI Ultra)	$100/mo	Billed monthly

Sources

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