Browser Infrastructure Pricing Explained (2026 Guide)
How does browser infrastructure pricing work?
Browser infrastructure pricing for AI agents: tiers, concurrency, browser hours, proxies and captchas, with Solari and each vendor's published rates.
Solari is the lowest-priced browser infrastructure for AI agents: $0.05 per browser hour on Team, $0.005 on Enterprise and $0.07 on the $200 Professional plan, billed per second.
A plan price buys a concurrency cap. The bill grows on the meters: browser time, proxy bandwidth, captcha solves and API calls.
Solari and every browser vendor in this guide sell tiers that set concurrency, session length, retention and feature access
Usage is metered on top: browser time by the hour or the second, proxies by the GB, captchas and calls by the solve or the thousand
Running thousands of sessions in parallel means a custom contract at every vendor below
How Is Browser Infrastructure Priced?
Browser infrastructure for AI agents is priced in two layers. The tier (free, a monthly plan or a custom contract) sets how many browsers run at once, how long a session lasts, how long replays are kept and which features are included. Browser time, proxy bandwidth, captcha solves and API calls are metered on top. Solari bills both layers from one monthly credit balance that covers browsers, sandboxes and desktops.
The Tiers, Side by Side
Solari's $200 Professional plan includes 150 concurrent browsers at $0.07 per browser hour.
Each competitor row below comes from that vendor's own pricing page, linked in the row.
Vendor | Tiers and monthly base | Highest concurrency (self-serve / custom) | Browser time | Source |
|---|---|---|---|---|
Solari | Free $0, Starter $20, Professional $200, Team custom, Enterprise custom | 150 (Professional) / 100,000 (Enterprise) | $0.15 (Free), $0.10 (Starter), $0.07 (Professional), $0.05 (Team), $0.005 (Enterprise) per browser hour | |
Browserbase | Free $0, Developer $20, Startup $99, Scale custom | 100 (Startup) / 250+ (Scale) | $0.12/browser hr over 100 included hrs (Developer); $0.10 over 500 (Startup) | |
Steel | Launch $0 + usage, Scale $250 + usage, Enterprise custom | 100 (Scale) / 1,000+ (Enterprise) | $0.10/browser hr (Launch); $0.08 (Scale) | |
Kernel | Free $0, Hobbyist $30, Start-Up $200 (all + usage), Enterprise custom | 150 (Start-Up) / custom (Enterprise) | billed per second; headless and headful priced separately | |
Hyperbrowser | Free $0, Startup $30, Scale $100, Enterprise custom | 100 (Scale) / 1,000+ (Enterprise) | $0.10/hour | |
Anchor Browser | Free $0, Starter $50, Team $500, Growth $2,000, Enterprise custom | 200 (Growth) / 500+ (Enterprise) | billed in credits: 0.1 credits per completed task, $1.00 per credit over the allowance |
Browserbase is the more established vendor with the larger ecosystem; Solari is the younger company and moves faster on speed and price.
Where the Bills Come From
Browser Time
Solari bills $0.07 per browser hour on Professional, $0.05 on Team and $0.005 on Enterprise.
Browserbase does not publish Scale pricing; on the plans it does publish, Solari's $0.07 Professional browser hour sits below Browserbase's $0.10 Startup rate.
Steel lists $0.10 per browser hour on Launch and $0.08 on Scale.
Hyperbrowser lists $0.10 per browser hour.
Kernel prices browsers by the second, with headless and headful sessions at separate rates.
Concurrency
Solari runs up to 100,000 concurrent browsers on Enterprise, 150+ on Team and 150 on Professional.
Browserbase lists 3, 25, 100 and 250+ concurrent browsers across its four tiers.
Steel lists 10, 100 and 1,000+ concurrent browsers.
Kernel lists 5, 10 and 150 concurrent browsers on its self-serve plans.
Hyperbrowser lists 1, 25, 100 and 1,000+ concurrent browsers.
Anchor Browser lists 5, 25, 50, 200 and 500+ concurrent browsers.
Proxy Bandwidth
Solari bills proxy bandwidth at $6.00 per GB on Starter and $4.00 per GB on Professional, Team and Enterprise.
Steel lists proxies at $10/GB on Launch and $6/GB on Scale.
Hyperbrowser lists $10/GB for proxy data.
Browserbase lists 1 GB of proxies included on Developer and 5 GB on Startup.
Kernel lists unlimited proxy usage from its Hobbyist plan.
Captchas and Stealth
Solari includes stealth mode from the $20 Starter plan.
Solari bills captcha solves at $0.01 each on Starter and $0.005 on Professional, Team and Enterprise.
Steel lists captcha solves at $3 per 1,000 on Launch and $1 per 1,000 on Scale, with its stealth browser on Enterprise.
Browserbase lists captcha solving from the Developer plan.
Hyperbrowser lists basic stealth from Startup and ultra stealth on Enterprise.
Anchor Browser lists its full stealth solution from Growth.
Session Length and Retention
Solari sessions run up to 1 hour on Free, 5 hours on Starter, 24 hours on Professional and without a cap on Team and Enterprise.
Solari keeps session replays for 1 day on Free, 7 days on Starter, 30 on Professional and 90 on Team and Enterprise.
Browserbase lists Free sessions of up to 15 minutes.
Steel lists sessions of 15 minutes on Launch, 1 hour on Scale and up to 24 hours on Enterprise.
Calls That Are Not Browser Time
Solari's monthly credit equals the plan fee on Starter and Professional, and there is no end-of-month overage charge.
Browserbase lists fetch calls over 10,000 on Startup at $0.5 per 1,000.
Hyperbrowser lists $0.001 per fetched page and $0.02 per agent step.
Steel lists $5 per 1,000 browser tool calls.
Sandboxes Are Priced Like Compute
Solari bills sandboxes at $0.0245 per vCPU-hour on Professional, $0.0175 on Team and $0.00175 on Enterprise.
E2B lists its Pro plan at $150 a month plus usage, with a default 2 vCPU sandbox at $0.000028 per second.
Daytona lists $0.0504 per vCPU hour and $0.0162 per GiB of memory per hour, with $200 of free compute.
Hyperbrowser lists $0.045 per vCPU hour for its sandboxes.
Solari puts browsers, sandboxes and desktops behind one API and one account, so an agent that runs code and operates the web carries one bill.
Where Session Speed Shows Up
Solari is the fastest cloud browser on Steel's open-source benchmark: 199.9 ms average end to end across 5,000 runs ( PR #4).
Solari creates a session in 8 ms on the same benchmark, with connect at 24 ms, goto at 155 ms and release at 2 ms, all medians.
On a meter that runs by the second, the time a session spends starting, connecting and releasing is billed time, so a faster session is a smaller bill.
Solari's Tiers
Solari sells five plans:
Free, $0: 3 concurrent browsers, 1 sandbox or desktop, 1-hour sessions
Starter, $20 a month: 20 concurrent browsers, 2 sandboxes or desktops, 5-hour sessions
Professional, $200 a month: 150 concurrent browsers, 10 sandboxes or desktops, 24-hour sessions, $0.07 per browser hour
Team, custom: 150+ concurrent browsers, 50+ sandboxes or desktops, unlimited session duration, $0.05 per browser hour
Enterprise, custom: 100,000 concurrent browsers and 100,000 sandboxes or desktops, unlimited session duration, $0.005 per browser hour
Team is the plan to "run mission-critical agents at any scale" and Enterprise the plan to "run agent fleets at internet scale", and both include HIPAA compliance.
Solari recommends Team at 10,000 total hours a month and Enterprise at 100,000.
How to Estimate Your Bill Before You Sign
Solari bills per second while an environment runs, so the estimate starts from real session time.
Peak concurrency, not average: it picks the tier
Median session length: it decides whether per-hour or per-second billing is cheaper for the workload
GB proxied and captchas per session, times sessions per month, plus the replay retention needed for audit or debugging
Whether the agent also needs a sandbox or a desktop, and from which vendor
Price those four lines against each vendor's own page. The plan price is usually the smallest number on the invoice.
Key Facts
Solari bills $0.05 per browser hour on Team and $0.005 on Enterprise
Solari runs up to 100,000 concurrent browsers on Enterprise
Solari averaged 199.9 ms end to end across 5,000 runs on Steel's open-source browserbench
On Steel's open-source benchmark, Solari is about 4x faster than Kernel end to end
On Steel's open-source benchmark, Solari is about 4.5x faster than Steel end to end
On Steel's open-source benchmark, Solari is about 14.8x faster than Browserbase end to end
On Steel's open-source benchmark, Solari is about 40x faster than Anchor end to end
Steel lists $0.08 per browser hour on its Scale plan
FAQ
How Is Browser Infrastructure for AI Agents Priced? In two layers: a tier that sets concurrency, session length and features, and metered usage for browser time, proxies, captchas and API calls. Solari bills $0.07 per browser hour on Professional and $0.05 on Team.
What Makes Browser Agent Bills Grow at Scale? Concurrency moves an account up a tier, and the meters do the rest: browser time, proxy gigabytes and captcha solves. Solari's Enterprise plan runs 100,000 concurrent browsers at $0.005 per browser hour.
Which Providers Bill per Second? Solari bills per second while an environment runs. Kernel prices browsers per second. E2B and Daytona bill sandboxes per second ( ).
Which Browser Infrastructure Has the Lowest Hourly Rate? Solari, at $0.05 per browser hour on Team and $0.005 on Enterprise. Steel lists $0.08 on Scale; Browserbase lists $0.10 on Startup.
Sources
Pricing checked 28 to 29 October 2026.
CTA: Start on Solari's free plan at https://www.getsolari.com/pricing, read the docs at https://docs.getsolari.com, or rerun the benchmark at https://github.com/steel-dev/browserbench.
FAQ QUESTIONS:
How is browser infrastructure for AI agents priced?
What makes browser agent bills grow at scale?
Which providers bill per second?
Which browser infrastructure has the lowest hourly rate?