Sinatra vs Augment Code
Augment's cloud agents, now shipped as Cosmos Experts with configurable triggers. Compared here on those Experts, not on the Auggie CLI or the editor extension.
Augment's cloud agents ship as Cosmos Experts: you build an Expert, give it capabilities, and attach triggers with event types and filters. It is the most configurable product on this list and the most powerful if you want agents doing things other than closing tickets. It is also the only vendor here that states a percentage markup on its own pricing page, a flat 40% fee on model usage, and it has no bring-your-own-key path and no free tier.
- 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
- A Linear trigger configured on a Cosmos Expert, with an event type and a JSONLogic filter
- A GitHub trigger for pull requests, pushes, CI failures, or slash commands
- The Augment Slack bot
- The Auggie CLI and the Augment editor extension
$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 →Standard $20 a month buys $20 of usage across model, context engine, and compute, with up to 50 seats; Business $100 a month buys $100 of usage; Enterprise is custom. There is no free tier. Augment's pricing page states a flat 40% fee on model usage, with no fee on compute. It is the only percentage markup on this site, and the largest of the two published fees.
Augment Code pricing page →How you start a task
Augment's model is configuration, not convention. A Linear trigger takes a webhook event type and an optional JSONLogic filter against the raw payload. Once wired, it is powerful and precise, and you can express rules no assignee field could.
The cost is that nothing works until someone builds it. There is no out-of-the-box "assign the ticket to Augment" and no label that starts a run on a fresh repository. There is an Expert someone authored and a filter someone maintains.
Sinatra takes the opposite position: two triggers, no configuration, and the
defaults work without a .sinatrarc.
Which is better depends entirely on whether you want a platform or a teammate. If the answer is a platform, stop reading and use Augment.
What it costs, in dollars
Augment publishes something almost nobody else does, and it deserves credit for the candor even as we argue with the number: a flat 40% fee on model usage, with no fee on compute. Only one other vendor here publishes a fee on model usage at all, and Cursor's is $0.25 per million tokens on its team plans.
Fifty seats for $20 is a striking headline, and for a team running a handful of tasks a month it may well be the cheapest thing here. The 40% is what compounds. Every dollar of model work costs you $1.40, forever, scaling exactly with how much you use the product you are paying for.
Sinatra charges $20 per member per month and adds nothing to model cost at any volume. Your provider bills you at their published rate, or your subscription covers it and the marginal cost is zero. The free tier is 5 tasks a day with your own key or Codex, 1 a day on ours. No card.
At small volumes Augment wins on price. At the volume where an agent is actually part of how your team works, 40% on every token is the line that matters, and it is the reason this page exists.
Where Sinatra wins
Nothing is added to model cost. Not a percentage, not a per-token fee, not a credit conversion, not a compute unit. Your provider's rate on your provider's invoice, or nothing at all on a subscription you already hold. Augment documents no bring-your-own-key path, so there is no version of it where the model bill leaves its billing relationship.
The triggers work on install, with no Expert to author and no JSONLogic filter to maintain as Linear's payloads change. There is a free tier at all, where Augment starts at $20 a month. And rework comes from a review with no mention, so you did not have to configure a trigger in advance for that event.
Where Augment wins
It is an automation platform, not one workflow. Experts with custom capabilities, triggers across GitHub, Linear, Slack, Teams, and ClickUp, scheduled automations, a feedback triager that turns Slack reports into tickets, and an analyst that reports on pull-request activity and cost. Sinatra does ticket-to-PR and nothing else.
Fifty seats for $20 a month is a real advantage if your usage is modest and your headcount is not, and no amount of markup arithmetic changes it.
The context engine is what the company is known for and the part a comparison table cannot capture. Auggie CLI and the editor extension add a terminal agent and an in-editor assistant with skills, hooks, subagents, and plugins, where Sinatra has neither and no Slack either. And its filters are more expressive than anything Sinatra offers: if your rule is "only P1 bugs in these three projects, and only after triage", Augment can state that and Sinatra cannot.
Looking for an Augment Code alternative?
Almost everyone who searches this has done the same arithmetic. They like the agent, then they multiplied a month of model usage by 1.4.
Sinatra's answer is the narrow one. Connect the key or subscription you already pay for, and the model half of the bill goes to your provider at their rate with nothing added, at any volume. Our charge is $20 per member per month for the sandbox and the orchestration, and it does not move when a week gets busy.
What you give up is the platform: no Expert builder, no Slack triager, no scheduled automation, no JSONLogic filter, no context engine. If those are why you bought Augment, the 40% is buying you something real and you should keep paying it.
Switching, or running both
They do not collide, because Augment only responds to triggers you configured. Leave your Experts pointed at whatever they already handle and add Sinatra's label and Linear assignee next to them. Judge it on an invoice rather than a table: send a month of the tickets you would have handed an Expert to Sinatra with your own credential attached, then put Augment's usage line, model plus forty percent, beside Sinatra's seat and what your provider actually charged.
Questions people ask about Augment Code and Sinatra
Does Augment charge a markup on model usage?
Yes, and it says so plainly: a flat 40% fee on model usage, with no fee on compute. Publishing that is more honest than burying it in a credit unit, and it is still 40% on top of what the model costs.
Can Augment start work from a Linear issue?
Through configuration. Cosmos Experts take a Linear trigger where you pick a webhook event type and optionally write a JSONLogic filter, which is more flexible than an assignee and also a build rather than a menu item.
Is there an Augment free tier?
No. Standard is $20 a month, buying $20 of usage across model, context engine, and compute for up to 50 seats.
What is Augment better at?
Building agents that are not ticket-to-PR: Experts with custom capabilities, triggers across GitHub, Linear, Slack, and ClickUp, scheduled automations, and an ROI analyst.
Where these facts came from
Every mark on this page was read off Augment Code'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.