Browserbase rents cloud browsers by the hour and is very good at it. AntiBrow runs on your own machine and keeps a persistent fingerprinted identity per profile. Verified Browserbase pricing captured 2026-08-01, and the cases where renting is the right call.
These two products are less alike than the category page suggests, and picking the wrong one wastes real money. Browserbase figures below come from browserbase.com/pricing, captured 2026-08-01.
| Plan | Monthly | Concurrent browsers | Included browser hours | Overage |
|---|---|---|---|---|
| Free | $0 | 3 | 1 | - |
| Developer | $20/mo | 25 | 100 | $0.12/hr |
| Startup | $99/mo | 100 | 500 | $0.10/hr |
| Scale | custom | 250+ | 500+ | usage-based |
Proxies are billed separately (1 GB included on Developer, then $12/GB; 5 GB on Startup, then $10/GB), and the free tier caps sessions at 15 minutes.
That is a clean, well-designed usage model. The billing unit is time a browser is running.
Browserbase is infrastructure for running browsers you do not want to host. Spin one up, do the work, tear it down. For a scraper or a one-shot agent task, that is exactly right, and running it yourself is a worse use of your time.
AntiBrow answers a different question: what if the same agent has to come back as the same person next week?
An AntiBrow profile is a durable identity on your own disk. It keeps its fingerprint, cookies, localStorage, IndexedDB and passkeys between runs. Run 40 looks like run 1 to the site, because it is the same machine as far as every signal is concerned. There are no browser hours, because the browser runs on hardware you already pay for.
That matters most for the thing agents are increasingly asked to do: hold an account. Log in on Monday, act on Thursday, and still be recognised. A fresh cloud session cannot do that without you rebuilding the identity every time, and the reconstruction is where the flags come from.
Passkeys make this sharper. Each AntiBrow profile carries its own virtual authenticator, so a passkey enrolled on a site is captured and replayed at the next sign-in. As sites make passkeys the default, an agent that cannot hold one is locked out of the account it registered itself.
We are not a cloud platform. You run AntiBrow on your machine, your CI, or your own box, and the operational burden is yours. If that is the reason you are shopping, this is not the trade you want.
And neither product makes detection go away. Proxy quality, behaviour and account history decide most outcomes, and no browser controls any of the three.
These compose. Plenty of teams should rent cloud browsers for throwaway work and keep a small set of durable local identities for the accounts that matter. The mistake is paying browser-hours to rebuild an identity you could have just kept.
AntiBrow's free tier is unlimited local profiles, no card, 1 concurrent browser. Run one profile through your actual target twice, a week apart, and see whether it is still recognised.
Unlimited local profiles on the free tier, no card. Run the detectors before you trust any of this.