Best AI Automation Tools: Priced by the Task, Not the Tool
Automation platforms compared on execution-based pricing, self-hosting and where each one breaks at volume.
Short answer
Automation tools are priced by tasks executed, not by seats, so the honest comparison is cost per run: Zapier (free, Pro from $19.99/mo), Make (free, Core from $9/mo), n8n (open source free, Starter €20/mo), Coze (free, Premium from $9/mo) and Manus (free, Plus $39/mo). Zapier has the widest app catalogue and the highest per-task cost at volume; Make starts cheaper; n8n is the only one you can self-host, which is the deciding factor when data cannot leave your infrastructure. Coze is for building agents rather than wiring apps, and Manus charges credits for whole tasks rather than steps, which suits one-off jobs and punishes long ones.
Every tool here promises the same thing — connect two apps without writing code — so the useful differences are billing model, where execution happens, and what happens to the price when a workflow starts running a thousand times a day. Our workflow-automation scenario page covers how to choose this class of tool; this page is the price-and-limits comparison.
Zapier is the safest default because it integrates with the most apps, and its free tier is a real trial; Pro starts at $19.99/mo. The cost is the billing model — tasks are counted per action, so a looping workflow gets expensive in a way that is easy to miss until the invoice. Make takes the same approach with a cheaper entry, Core from $9/mo. n8n is the outlier that changes the decision: it is open source and free, with hosted Starter at €20/mo, and because you can run it yourself, it is the answer whenever data is not allowed to leave your own infrastructure. Coze (free, Premium from $9/mo) is aimed at building agents rather than wiring SaaS together, and Manus (free, Plus $39/mo) charges credits per whole task, so it competes on one-off jobs rather than high-frequency plumbing.
| Tool | Entry price | Billing model | Chosen when |
|---|---|---|---|
| Zapier | Free / from $19.99/mo Pro | Per task executed | Widest app coverage matters most |
| Make | Free / from $9/mo Core | Per operation | You want the same model cheaper |
| n8n | Open source free / €20/mo Starter | Per execution, or self-hosted | Data cannot leave your infrastructure |
| Coze | Free / from $9/mo Premium | Per usage tier | You are building agents, not wiring apps |
| Manus | Free / $39/mo Plus | Credits per task, not per step | Occasional complex jobs, not high volume |
Where each one breaks. Task and operation pricing punishes loops, retries and polling, and all of them count those as work — so a workflow that polls every minute costs far more than one that is triggered. Manus meters credits by task complexity and duration, so a long agent run is unpredictable before you start it; its pricing suits occasional jobs and punishes routine volume. And none of these gives you a guaranteed execution time, so anything with an SLA attached should be checked before you move it off a scheduled script.
Before choosing, answer these:
- How many executions per month at steady state, because that number sets the tier
- Whether your data may leave your infrastructure, which narrows the field to n8n
- Whether the workflow polls or is triggered, because polling multiplies the bill
- Who fixes it at 2am, since an automation that fails silently is worse than a manual step
Frequently asked questions
- Which automation tool is cheapest?
- On entry price Make starts lowest at $9/mo, and n8n is free if you self-host. The cheapest at volume depends on your billing pattern — a triggered workflow and a polling one cost very differently on the same plan.
- Can I self-host these tools?
- Only n8n among these, which is why it is the answer when data cannot leave your network. Zapier, Make, Coze and Manus are hosted services.
- Is Manus the same kind of tool as Zapier?
- No. Zapier and Make wire applications together on triggers; Manus runs a whole task as an agent and charges credits for it. Manus suits occasional complex jobs, not high-frequency plumbing.
- What is the real cost trap in automation pricing?
- Polling and retries. Platforms bill per task or operation, so a workflow that checks every minute costs far more than one that fires on an event, even when it does the same job.
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