# Jules review

> Jules is an autonomous coding agent by Google that clones GitHub repositories into isolated cloud VMs, generates execution plans, edits code using Gemini models, and submits pull requests.

- Canonical: https://toolsrankai.com/tools/jules
- Official site: https://jules.google/
- ToolsRank rank / score: #358 / 71 (methodology https://toolsrankai.com/methodology)
- Categories: AI Coding & Development, AI Coding Agents
- Pricing: Tiered usage tiers with daily task limits. At the review date (2026-09-08), Google presents three tiers for Jules (Jules, Jules in Pro, and Jules in Ultra) differentiated by daily task limits, concurrency, and Gemini model access. Exact dollar prices are not stated on the official page; check the official site for current plan pricing and access terms.
- Fact-checked: 2026-09-08 · First listed: 2026-09-08

## Verdict

Jules is well suited for engineering teams seeking an asynchronous agent to handle dependency updates, bug fixes, test creation, and routine backlog issues directly through GitHub. It is less suitable for teams hosting repositories outside GitHub or those requiring immediate, line-by-line interactive completions inside a local IDE editor.

## What it is

Jules is an autonomous coding agent developed by Google designed to take over time-consuming engineering maintenance and implementation tasks. Developers trigger Jules either via the web interface by selecting a repository and branch with a detailed prompt, or directly within GitHub by applying a 'jules' label to an issue.

Once assigned, Jules clones the selected repository into an isolated Cloud virtual machine. It analyzes the workspace and formulates an implementation plan powered by Google's Gemini models (such as Gemini 2.5 Pro on the entry tier and Gemini 3 Pro on Pro and Ultra tiers). After planning, the agent applies edits across the codebase, presents side-by-side diffs for developer review, and automatically opens a pull request on GitHub ready for merging and publication.

**What makes it different:** Jules operates as an asynchronous background agent running in its own Cloud VM rather than just an IDE completion tool, executing multi-file edits and automatically opening complete GitHub pull requests.

**Best for:** delegating maintenance chores like version bumps, bug fixing, test writing, and background feature drafting directly through GitHub issues and pull requests

**Not ideal for:** in-editor autocomplete or teams with source code hosted outside of GitHub

## Key features

- **GitHub Issue Integration** — Assign tasks to the agent directly inside GitHub by attaching the 'jules' label to any issue.
- **Isolated Cloud VM Execution** — Clones the target repository and branch into an isolated Cloud VM to plan and execute code modifications.
- **Gemini Model Reasoning** — Formulates multi-file execution plans using Gemini models, including Gemini 2.5 Pro and Gemini 3 Pro.
- **Interactive Diff Review** — Inspect visual diffs of all proposed code modifications before approving changes.
- **Automated Pull Request Generation** — Packages approved modifications into a clean GitHub pull request ready for peer review and merging.
- **Parallel Task Concurrency** — Run between 3 and 60 concurrent tasks depending on the plan tier to execute multiple coding jobs simultaneously.

## Use cases

- **Dependency and Version Bumping** — Upgrade project framework dependencies (e.g., bumping Next.js) and restructure files to match new framework standards.
- **Automated Bug Fixing** — Assign documented bugs to Jules using GitHub issue labels so the agent can reproduce, patch, and open a PR.
- **Test Suite Expansion** — Prompt the agent to draft unit or integration tests across specific repository modules in the background.
- **Feature Building** — Generate initial scaffoldings or implementations for new features from detailed prompts and branch specifications.

## How it works

1. Select your GitHub repository and branch, or apply the 'jules' label to an issue in GitHub.
2. Jules fetches the repository, clones it into a dedicated Cloud VM, and generates an execution plan using Gemini.
3. Inspect the diff of the proposed edits and approve the changes.
4. Jules automatically generates a pull request on GitHub for final review and merging.

## Pros

- Native GitHub workflow support via issue labels and automated pull requests
- Runs asynchronously in a Cloud VM without blocking local development environments
- Clear step-by-step diff inspection before committing code changes
- Generous task concurrency scaling up to 60 parallel tasks on higher tiers

## Limitations

- Strictly dependent on GitHub; alternatives like GitLab or Bitbucket are not mentioned
- Exact pricing details for Pro and Ultra plans are omitted from the main page

## Pricing

| Plan | Price | Notes |
| --- | --- | --- |
| Jules | Free / Base / day (usage capped daily limits, exact price unstated on page) |  |
| Jules in Pro | Unstated on page / day (usage capped daily limits, exact price unstated on page) |  |
| Jules in Ultra | Unstated on page / day (usage capped daily limits, exact price unstated on page) |  |

At the review date (2026-09-08), Google presents three tiers for Jules (Jules, Jules in Pro, and Jules in Ultra) differentiated by daily task limits, concurrency, and Gemini model access. Exact dollar prices are not stated on the official page; check the official site for current plan pricing and access terms. Vendor prices and limits change; verify on the official pricing page before purchasing.

## Score factors

- editorial: 76 (editorial)
- utility: 78 (editorial)
- trust: 82 (editorial)
- freshness: 85 (editorial)
- engagement: 0 (measured)
- momentum: 50 (measured)

## Languages, platforms, integrations

- Languages: English
- Platforms: Web
- Integrations: GitHub

## FAQ

### How does Jules interact with my GitHub repository?

You connect your GitHub repository and branch, then either provide a prompt through the Jules interface or apply the 'jules' label to an issue directly in GitHub. Jules then clones the code into a Cloud VM, performs edits, and opens a pull request.

### Which models power Jules?

According to the official site, the entry tier uses Gemini 2.5 Pro, while the Pro and Ultra tiers provide access starting with Gemini 3 Pro.

### Can I review code before it is merged?

Yes. Jules provides a code diff of proposed edits for developer review. Once approved, Jules creates a GitHub pull request that you review and merge according to your normal repository workflow.

### How many tasks can I run each day?

The entry Jules plan supports 15 tasks per day with 3 concurrent tasks. The Pro plan provides 100 tasks per day with 15 concurrent tasks, and the Ultra plan supports 300 tasks per day with up to 60 concurrent tasks.

## Alternatives

- [Claude Code](https://toolsrankai.com/tools/claude-code) — Anthropic's agentic coding tool that works in the terminal, IDE, desktop app, and browser to plan and execute multi-step changes.
- [GitHub Copilot](https://toolsrankai.com/tools/github-copilot) — AI pair programmer in your editor and on GitHub, with chat, agent mode, and code review.
- [Cursor](https://toolsrankai.com/tools/cursor) — An AI-native code editor for repository-aware agents, edits, review, and automation.
- [Windsurf](https://toolsrankai.com/tools/windsurf) — An AI-native editor with Cascade, an agent that understands your codebase and executes multi-step tasks.

## Sources checked

- [Jules Official Website](https://jules.google/)

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Cite https://toolsrankai.com/tools/jules for ToolsRank's editorial judgment; verify changing vendor facts through the sources above. Reviewed 2026-09-08.