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Jules

#141 overall#9 autonomous sweverified Sep 2, 20260.1.42

Google's asynchronous coding agent that clones a GitHub repo into a cloud VM, plans changes and opens pull requests

Key differences

Google's asynchronous coding agent that clones a GitHub repo into a cloud VM, plans changes and opens pull requests

  • Runs cloud and sandbox. Free plan with 15 tasks per day and 3 concurrent tasks. Higher limits come with Google AI Pro ($19.99/month, 100 tasks/day, 15 concurrent) and Google AI Ultra (from $99.99/month, 300 tasks/day, 60 concurrent); paid plans are currently limited to individual Google accounts.
  • Supports headless CI workflows. Listed for 13 of 24 tools in this category.
  • Includes a Docker sandbox. Listed for 16 of 24 tools in this category.
  • Keep in mind: Jules runs only on Google-hosted Gemini models; there is no provider picker, custom base URL, gateway or cloud deployment of your own.

“Fifteen free tasks a day, as long as you are over 18 and using a personal Gmail rather than the company account.”

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What it is

Jules takes a task from the web app, a GitHub issue, the Jules Tools CLI or the REST API, clones the repository into a Google-hosted VM, proposes a plan, runs commands and tests, and returns a pull request. It runs on Gemini models, can surf the web, connects to a curated set of MCP servers, and supports scheduled tasks and CI auto-fixing.

Specification

Source verification

Row snapshot checked 2026-09-02. Individual checks below are recorded separately; automated release checks do not verify capabilities or pricing.

pricing
Needs individual review
models
Needs individual review
install
Needs individual review
protocols
Needs individual review
capabilities
Needs individual review

Architecture

Type
Autonomous SWE
Runssrc ↗
cloud, sandbox
Platforms
web, macos, linux, windows
Context windowsrc ↗
not documented
Languages
any

Models

Backbonesrc ↗
Gemini 3 Flash, Gemini 3.1 Pro
Bring your own model
No
Jules runs only on Google-hosted Gemini models; there is no provider picker, custom base URL, gateway or cloud deployment of your own.
Local models
No
Tasks run in a Google-hosted VM with no configurable model endpoint, so no local LLM can be used.

Protocols

MCP clientsrc ↗
Yes
MCP server
No
OpenAPI tools
No

Capabilities

Terminal commandssrc ↗
Yes
Multi-file edits
Yes
Git operations
Yes
Browser control
Yes
The default VM image includes Playwright and chromedriver, and Jules renders a front end and returns screenshots to verify its work (https://jules.google/docs/environment).
Sandboxed execution
Yes
Each task gets a secure, short-lived Ubuntu VM with internet access (https://jules.google/docs/environment).
Multi-agent
No
Headless / CI
Yes

Cost

Modelsrc ↗
subscription
Starts at
$19.99/mo
Free tier
Yes
Bring your own key
No
Access comes from a Google AI plan; no Gemini API key or Google Cloud project of your own can be attached.

Free plan with 15 tasks per day and 3 concurrent tasks. Higher limits come with Google AI Pro ($19.99/month, 100 tasks/day, 15 concurrent) and Google AI Ultra (from $99.99/month, 300 tasks/day, 60 concurrent); paid plans are currently limited to individual Google accounts.

Openness

Open sourceunsourced
No
License
proprietary
First release
2025-05
autonomouscloudgithubgeminiasyncmcp

Los Agentes on Jules

Who are they?
The ruling
El JuezThe judge

El Amigo and El Hacker are 2.5 points apart, but La Jefa's fact rules: paid plans are limited to individual Google accounts, so no team can buy it.

Adopt with conditions
Reasoning and trade-offs · AI analysis

The split is 2.5 points. El Amigo scores it highest for the backlog, fifteen free tasks a day on a personal account. El Hacker scores it lowest: a closed VM, Gemini only, MCP as a menu rather than a config file. La Jefa supplies the fact that decides it, paid plans are limited to individual Google accounts.

La Jefa's not yet is correct for the company and wrong in general, so she is overruled for the individual: El Amigo's chores do not need a Workspace account. El Crítico's warning about the setup script stands. Adopt with conditions, personal repositories only, off the company organisation until Workspace accounts are supported.

Agree with El Juez?
El AmigoThe friend

Use Jules for the backlog you never get to, fifteen free tasks a day on a personal Google account, and do not adopt it as a team tool because the paid plans do not accept business accounts yet.

6.8
Reasoning and trade-offs · AI analysis

You will like Jules for the backlog: hand it a GitHub issue and it clones the repo into a Google VM, runs your tests, and returns a pull request while you do something else, 15 free tasks a day. The daily trait is asynchrony, it is a colleague you assign to, not a tool you sit with.

Pick it on a personal Google account for the chores you never reach: dependency bumps, small test gaps, the lint you keep postponing. Do not pick it for a team, since paid plans exclude business accounts and nobody wants company code flowing through personal Gmail; pick Kiro there.

reliability
6
usefulness
7
cost
8
longevity
6
Agree with El Amigo?
El CríticoThe critic

Jules runs your repo in a VM you cannot inspect on a model you cannot choose, and the failure mode is a pull request built on an environment that never installed correctly.

6.3
Reasoning and trade-offs · AI analysis

The worst thing is opacity. Dependencies come from an optional setup script inside a Google-hosted VM; if the script fails, the agent works blind and the PR arrives with the confidence of one that ran tests. You cannot inspect the VM, so the only evidence is the log the agent shows you.

The consequence: read the setup output before the diff, every time, and treat a green PR from a red environment as untested. A visible environment status on the PR would change this verdict. The meter is the one thing it gets right: tasks per day, not tokens, so a loop costs a task slot, not a bill.

reliability
5
usefulness
6
cost
8
longevity
6
Agree with El Crítico?
El ProfesorThe professor

Jules has the correct autonomous architecture, an isolated VM, a plan reviewed before edits, tests run in place, and publishes no benchmark by which to judge what it does with it.

6.3
Reasoning and trade-offs · AI analysis

No benchmark is claimed, so nothing is overstated. The documented architecture: 1. Clone into a virtual machine. 2. Generate a plan and hold for approval before any change. 3. Run tests in place and return a pull request. The first two steps are the principled parts, because the plan is the one artifact a human reviews before tokens are spent on code.

The consequence is that quality depends on whether the model honors the approved plan, which is asserted and unmeasured. A quiet observation: the free plan lists Gemini 2.5 Pro while the changelog lists 3.1, so which model is measured depends on which page you read.

reliability
7
usefulness
6
cost
7
longevity
5
Agree with El Profesor?
La InversoraThe investor

Jules is a feature of a consumer subscription, not a company, and the risk to a buyer is a deprecation notice rather than a bankruptcy.

6.0
Reasoning and trade-offs · AI analysis

The paid tiers are consumer bundles, Google AI Pro at $19.99 and Ultra from $99.99, so Jules has no pricing power of its own; its price is whatever the bundle costs, set by someone selling storage and video. Paid plans excluding business accounts means zero enterprise revenue today, which for a coding agent is the only revenue that compounds.

The likely pivot is a merge into another Google developer product, with the tasks-per-day meter surviving as a quota somewhere else. No acquirer; the parent is the market. Position: free tier for chores, no team process on it, and expect the name to change.

reliability
6
usefulness
6
cost
5
longevity
7
Agree with La Inversora?
La JefaThe CTO

Paid plans are limited to individual Google accounts and Workspace support is in development, so there is no way to buy this for sixty engineers; not yet.

4.8
Reasoning and trade-offs · AI analysis

The demo is a pull request that appears during a meeting. Procurement cannot proceed: the usage-limits page states paid plans are limited to individual Google accounts, with Workspace support in development. That means sixty engineers on personal Gmail addresses granting a Google VM access to the company's GitHub organization, which is a policy violation before it is a purchase.

Nothing about SSO, audit or retention matters until the account model does. CI auto-fixing is attractive and unusable for the same reason. Revisit when Workspace accounts are supported and the first question becomes the seat price. Not yet.

reliability
5
usefulness
5
cost
4
longevity
5
Agree with La Jefa?
El HackerThe tinkerer

A closed VM, Gemini only, a curated MCP list and no key of my own; the CLI and REST API are the only handles, and they are decent handles.

4.3
Reasoning and trade-offs · AI analysis

Nothing here runs on my hardware. The VM is Google's, the model is Gemini and no other, and MCP means a curated set of servers Google chose, so the extension surface is a menu, not a config file. What I can bend: npm install -g @google/jules gives me a CLI, there is a REST API, and a setup script plus AGENTS.md shape the environment and the instructions.

That is enough for a cron job that files PRs overnight, which is the one use where I do not mind renting. No source to fork, no key of mine, no offline. Scriptable, not ownable.

reliability
3
usefulness
5
cost
6
longevity
3
Agree with El Hacker?