Sinatra vs Google Jules
Google's asynchronous coding agent, and the closest structural twin to Sinatra on this list: label a GitHub issue, come back to a pull request.
Structurally these two are twins: install a GitHub App, label an issue, come back to a pull request. Jules gives you more of it for free, 15 tasks a day against Sinatra's 5, and it acts on pull-request feedback without being asked, which almost nothing else here does. What it does not do is run on anything but Gemini, take a key or subscription of yours, or start from Linear. If your team runs Linear, or wants Claude on hard tickets, that is the whole decision.
- Yes means the vendor's own app starts a run from the issue itself, with nothing to commit to the repo first. Sinatra's trigger is the Sinatra label that ships with the GitHub App install (`sinatraai` on the hosted app). Partial means either that a workflow file and an API-key secret have to be added per repository first, or that the mention only works on pull requests and not on issues.
- Yes means assigning the ticket to the agent in Linear starts the run. Partial means the run starts some other way: an attachment link you click, or a trigger you configure yourself against Linear's webhooks. Assignment on its own does nothing.
- Yes means a changes-requested review is enough on its own: Sinatra reworks the branch and pushes the follow-up commit with no re-trigger and no mention. Partial means the agent acts only when it is @-mentioned in the thread, or only while its original session is still open.
- Yes means your own provider API key runs the agent everywhere the product runs it. Partial means keys work on some surfaces but not the one being compared here, either because the vendor documents them as local-CLI-and-desktop only, or because it never documents them covering its cloud agent at all.
- Yes means a Claude Pro/Max or ChatGPT subscription you already pay for authenticates the run on the vendor's hosted cloud. Partial means it works only where that CLI's login already sits on the machine: your own laptop or a self-hosted backend, not a clean cloud sandbox.
- Yes means you are never charged a marked-up model rate, either because you pay your provider directly, or because the vendor publishes the same per-token rates the provider does, or because model use is included in a flat plan with a published allowance. Partial means the answer depends on which plan you are on: no fee on the individual tiers, a published per-token fee on the team ones, charged even against your own key.
- Both halves have to be published: the plan price, and the rate for work past the plan. A published seat price sitting on top of an undisclosed credit, compute unit, or quota size is partial.
- Yes means the free tier states its daily allowance as a number. Sinatra's is 5 tasks a day with your own key or a Codex subscription, 1 a day on Sinatra's keys, no card. Partial means a free plan exists but its allowance is not published.
- Yes means you can run without supplying a model key at all, because the vendor bills you for the model.
- Yes means an editor plugin or a desktop app; partial means a terminal CLI and nothing that runs inside an editor. Sinatra has neither, on purpose: the work starts in the tracker and comes back as a pull request. If you want an assistant inside your editor, that is a real reason to pick one of these instead, and several teams run both.
- Sinatra has no Slack trigger. GitHub and Linear are the only two ways to start a run, and a Slack-first team should weigh that.
- Yes means you can run the agent on infrastructure you control, or the source is open. Partial means execution or inference can be pointed at your own account while the product itself stays the vendor's and stays closed. Sinatra is hosted only; there is no self-managed build.
Read off each vendor's own documentation and pricing pages on September 4, 2026.
How you start it
- Add the Sinatra label to a GitHub issue. The label ships with the GitHub App install and is named after the app (
sinatraaion the hosted one) - Assign a Linear ticket to Sinatra, or @-mention it in a comment
- Add the
juleslabel to a GitHub issue, with the Jules GitHub App installed - The Jules web app
- Jules Tools, the command-line companion
- The Jules API and scheduled tasks
$20 per member per month for hosted sandboxes and orchestration, with model cost passed through at provider rates and no markup. Free tier: 5 tasks a day with your own key or Codex, 1 a day on ours. No card.
Sinatra pricing →Bundled into Google AI plans rather than sold on its own, and metered in tasks rather than tokens. The free plan publishes 15 tasks a day and 3 concurrent; Jules in Pro is 100 a day and 15 concurrent; Jules in Ultra is 300 a day and 60 concurrent.
Google Jules pricing page →How you start a task
Jules and Sinatra do the GitHub half the same way, down to the gesture. Jules' changelog puts it about as plainly as it can be put: "Add the label 'jules' to any GitHub issue to start a task in Jules. That's it, label on, task live." What follows is the same shape too: a fresh VM, a clone, a branch, a pull request.
The difference is what else counts as a front door. Jules has no Linear trigger. It added MCP support with Linear among the servers, which lets the agent call Linear while it works, and its API can be wired into a tracker with code you write. Neither is a product manager assigning a ticket and walking away.
On pull requests Jules is better than its reputation: leave feedback and, in its default mode, it pushes a commit with the requested changes. Sinatra does the same from a changes-requested review. On this row the two are level, and most of this market is not.
What it costs, in dollars
Jules is metered in tasks rather than tokens, and the task counts are published. There is no separate model bill on top, which for a solo developer on GitHub is a genuinely cheap and clean model. Fifteen real tasks a day for nothing is more than Sinatra's free tier offers.
Sinatra prices the two halves separately: $20 per member per month for the sandboxes and orchestration, and models billed by your provider at their rate, or by nobody if the credential you connect is a subscription you already hold.
Which is cheaper depends entirely on whether you already pay for a model subscription, and whether you would otherwise be paying for Google AI Pro.
Where Sinatra wins
Linear is a trigger, not an MCP tool. Assign the ticket and walk away. For a team whose board is Linear, that is the difference between the agent being part of the workflow and being a second place to go.
You also choose the model: Anthropic, OpenRouter, a Claude subscription, a Codex
or ChatGPT subscription, pinned per repository in a committed .sinatrarc. Jules
is Gemini and only Gemini, so if your developers already hold Claude Max or
ChatGPT plans, Sinatra runs on them and Jules cannot at any tier. Sinatra also
covers two trackers with the same behavior on both, where Jules is GitHub-only.
Where Jules wins
The free tier, and it is not close. Fifteen tasks a day, three at a time, for nothing. If you are evaluating agents on your own time or running a side project, Jules gives you three times the runway and no card. That is a real reason to start there.
There is also no model bill at all. Tasks in, tasks out, nothing to forecast, no provider account, no key to rotate. For someone who does not want to think about tokens, that is simpler than anything Sinatra offers, and it runs Google's newest models on Google's own infrastructure, so a large codebase gets Gemini's long context by the shortest path.
It acts on review feedback by default, same as Sinatra and better than most of this market, so do not switch for that row. And it has grown past one loop: scheduled tasks, suggested tasks, automatic fixes for failed Render deployments, a CLI, and a public API.
Looking for a Google Jules alternative?
Almost everyone searching this hit one of two walls. Their team moved to Linear and Jules has no way in. Or they want Claude on the tickets that matter and Jules only offers Gemini.
Sinatra's answer is narrow. The GitHub half stays exactly as it is, an App, a label, a pull request, so the muscle memory survives the move. What you gain is a Linear assignment as an equal trigger and a model credential that is yours, pinned per repository if different codebases want different models.
What you give up is the free allowance. Five a day is a third of Jules' fifteen. If the quota is why you are here, staying is the right answer.
Switching, or running both
The labels differ, so nothing collides, and both Apps can stay installed indefinitely. The comparison that settles it takes a week and only works if you are honest about the sample: the same five tickets to each, not five easy ones here and five hard ones there. Point Sinatra at whichever model you would actually run in anger. If Gemini closes your tickets as well as Claude does, Jules is free and you should stay.
Questions people ask about Google Jules and Sinatra
Is Jules free?
Yes, with a published allowance of 15 tasks a day and 3 at once; Pro raises it to 100 and Ultra to 300. That is more generous than Sinatra's 5 a day, and we are not going to pretend otherwise.
Does Jules work with Linear?
Not as a trigger. Jules added MCP support including Linear, which lets the agent call Linear during a session, but that is not assigning a ticket to it.
Can Jules use Claude or my own API key?
No. Jules runs Gemini and there is no bring-your-own-key path in its documentation. Sinatra takes an Anthropic or OpenRouter key or a Claude or ChatGPT subscription, pinned per repository.
Which is better for a solo developer?
If you are on GitHub only and happy with Gemini, Jules: fifteen free tasks a day against five is not close. Sinatra wins when the backlog is in Linear or you already pay for Claude or ChatGPT.
Where these facts came from
Every mark on this page was read off Google Jules's own documentation and pricing pages on September 4, 2026, not from a third-party roundup. If something here is out of date or wrong, tell us and we will fix the page.