The three-way buying decision
This shortlist starts with Steel and Tilion, then includes Notte as a third implementation path for regional browser deployment. A controller makes repeated browser calls across regions. The application needs to choose where the controller and browser run, not just where a proxy exits.
A proxy exit country is not the browser's hosting region. Every action can pay a round trip between the controller and browser, so record both locations.
A proposed acceptance case
A controller makes repeated browser calls across regions. The application needs to choose where the controller and browser run, not just where a proxy exits.
This is an evaluation design, not a claim that this workflow has been executed successfully on every provider.
| Part of the test | Required observation |
|---|---|
| Controlled input | The intended controller region, the configured browser region and a fixed sequence of page actions. |
| Pass condition | The chosen deployment meets the end-to-end action budget from the intended controller location, with browser and proxy locations recorded separately. |
| Negative case | Run the controller from a deliberately distant region. Detect the changed action latency instead of attributing every delay to browser creation. |
| Evidence to retain | Controller region, browser region, proxy configuration and per-action timing distribution. |
Documented mechanisms, side by side
These labels describe product mechanisms. The linked source and the acceptance case determine whether a mechanism meets this workflow's requirement.
| Requirement | Steel | Tilion | Notte |
|---|---|---|---|
| Browser control | Documented | Arena integration | Documented |
| Saved browser state | Documented | Not established | Documented |
| Live view | Documented | Not established | Documented |
| Deployment choice | Documented | Not established | Enterprise options |
Sources: docs.steel.dev [1] ↗docs.steel.dev [2] ↗docs.steel.dev [3] ↗docs.steel.dev [4] ↗tilion.com [5] ↗docs.notte.cc [6] ↗docs.notte.cc [7] ↗docs.notte.cc [8] ↗docs.notte.cc [9] ↗
Deployment ownership
Steel: Compare managed Steel with the documented self-hosted path explicitly. Self-hosting gives the team infrastructure responsibility that a hosted browser subscription would otherwise cover.
Tilion: The public access path currently points to a waitlist and contact. A production integration needs an agreed API contract, service access and ownership of the browser lifecycle.
Notte: Use a remote browser from your existing process or deploy the browser automation as a Notte Function. These choices put lifecycle, scheduling and monitoring responsibilities in different places.
Sources: docs.steel.dev [1] ↗tilion.com [2] ↗docs.notte.cc [3] ↗
Browser control
Steel: Steel sessions expose browser connection details for existing automation code. Create and release the owned session through Steel's lifecycle API; a browser library is the controller, not the infrastructure scheduler.
Tilion: BrowserArena includes a Tilion session integration. The reviewed public Tilion homepage does not publish the full session API contract; obtain the supported connection and lifecycle instructions through its access flow.
Notte: Create an owned browser session, connect Playwright or Puppeteer over CDP, and stop the session when the work finishes. Browser lifecycle management remains necessary even when the control socket disconnects.
Sources: docs.steel.dev [1] ↗tilion.com [2] ↗docs.notte.cc [3] ↗
Pricing model
Steel: Hosted browser plans and a self-hosted browser have different cost structures. For self-hosting, include the worker, compute, networking, storage and operations rather than assigning the open-source code a zero operating cost.
Tilion: Arena provides an estimated usage rate for its test. The reviewed public homepage does not establish a self-serve production plan, allowances or overage terms. Obtain those terms before quoting a monthly bill.
Notte: The public usage rates are $0.01 per browser-hour, $0.05 per Function-hour and $10 per GB of managed proxy traffic. Paid plans return their price as usage credits. Price the relevant meters and plan eligibility for the workload.
What should change the choice?
Notte is a candidate when its available deployment path fits the application region and operational requirements. Use the controller-to-browser path in the pilot rather than inferring placement from Arena's median.
Steel: Steel's managed and self-hosted choices make infrastructure ownership a concrete deciding factor. Keep that option on the shortlist when operating the browser is intentional; evaluate Notte when owning fewer execution and authentication components is the actual goal.
Tilion: The reviewed Tilion homepage offers a waitlist and contact route. Arena's tested integration is useful evidence about a run, but a purchasing or migration decision still needs a documented access, state and execution contract; those unknowns must remain visible beside Notte's public docs.
Keep a provider's browser-local code path or established regional deployment when it materially reduces repeated calls. A lower browser-hour rate does not remove network round trips.
Sources: docs.steel.dev [1] ↗docs.steel.dev [2] ↗docs.steel.dev [3] ↗tilion.com [4] ↗docs.notte.cc [5] ↗docs.notte.cc [6] ↗notte.cc [7] ↗
How to remove an option from the shortlist
For this workflow, require the following evidence from Steel, Tilion and Notte: Controller region, browser region, proxy configuration and per-action timing distribution.
Remove a proposed configuration when its documented mechanism or a controlled pilot cannot meet the pass condition. Keep an undocumented feature as an unresolved question instead of inventing an equivalence. Do not select a provider solely because it appears in this shortlist.
- The chosen deployment meets the end-to-end action budget from the intended controller location, with browser and proxy locations recorded separately.
- Run the controller from a deliberately distant region. Detect the changed action latency instead of attributing every delay to browser creation.
Sources: docs.steel.dev [1] ↗tilion.com [2] ↗docs.notte.cc [3] ↗
Make a bounded pilot
Measure a fixed action sequence from the intended application region and keep browser and proxy configuration consistent across providers.
Use the same authorized account, input and final-state check in each configuration. Treat a missing product contract as an open question; do not turn an undocumented capability into an unsupported claim or a successful test result.
- Record source controller, browser and proxy locations separately.
- Run the same controller action sequence against the target from the real application region.
- Move only after both action latency and the deployment responsibilities fit the budget.