Smooth Review (2026): Pricing, Features & Honest Verdict

TLDR

Smooth is a serverless browser agent API. You describe a web task in plain English and an AI agent drives a real browser to do it, claiming 5x faster and 7x cheaper performance than Browser Use. Best for: developers who need reliable browser automation in production. Price: Free tier, Starter $50/mo, $0.005 per step. Rating: 8.4/10.

What is Smooth?

Smooth is a browser agent API. You give it a task in natural language, like log into this site and download last month’s invoices, and it controls a real browser with mouse and keyboard to carry the task out autonomously. It handles web scraping, form filling, QA testing, and social media automation, and it comes packaged as an easy API along with an SDK and a CLI. The pitch is that you describe goals the way you would to a person, instead of writing fragile DOM selectors that break the moment a site changes its layout.

It is built by Circlemind, a Y Combinator company based in San Francisco. We tested the claims because the browser automation space is crowded and full of benchmark bravado, but Smooth backs its talk up. It scores 92% on the WebVoyager benchmark, the standard test for this category, and the company says it runs 5x faster and 7x cheaper than Browser Use, the popular open-source agent it compares itself against. The reason it can be that cheap and fast is a deliberate choice to use small, efficient models with a higher-level interface designed for how agents actually think: goals and natural language, not low-level DOM manipulation.

What Are Smooth’s Key Features?

Natural-language task execution

The core of Smooth is that you describe what you want in plain English and the agent figures out the clicks, scrolls, and typing to make it happen. This is a meaningful step up from traditional automation, where you script exact selectors that snap the instant a page changes. Because the agent reasons about goals rather than DOM paths, the same instruction keeps working across site redesigns far better than a brittle Playwright script would.

Speed and cost efficiency

Smooth uses small, efficient models, and the payoff is real. It leads the WebVoyager leaderboard at 92% while running 5x faster and 7x cheaper than Browser Use. The company cites a WebVoyager benchmark run costing roughly $38 on Smooth versus about $250 on competing setups. It also claims to be 20x faster and 5x cheaper than Claude Code with the chrome flag. Those are the kinds of margins that change whether an automation project is even economically viable.

Production-ready browser infrastructure

Smooth handles the unglamorous parts of running browsers at scale: instant browser spin-up, custom proxies and proxy rotation, persistent sessions, stealth mode, and auto-CAPTCHA solvers. These are the things that separate a demo from something you can run in production, and they are built in rather than bolted on. The serverless infrastructure means it scales instantly without you managing a fleet of browser instances.

Simple API, SDK, and CLI

Smooth ships as a clean API, an SDK, and a CLI, so you can drop it into whatever you are building. The CLI in particular makes it easy to script and test tasks from your terminal before wiring it into an application. For developers, this low-friction surface is a big part of the appeal: you can go from idea to a working automation in minutes rather than fighting setup.

Enterprise-grade security options

On the higher tiers, Smooth offers end-to-end encryption, zero-trust access controls, single-tenant deployments, bring-your-own-cloud, BAA agreements, and SSO/SAML. That is a serious list for a young company and signals it is going after real enterprise workloads, not just hobbyist scraping. If compliance is a blocker for you, the Enterprise tier is built to clear it.

How Much Does Smooth Cost?

Smooth starts free, with welcome credits, 2 concurrent browsers, and no credit card required, which is enough to prove out real tasks before you spend anything. Paid plans begin at Starter for $50/month, which includes $50 in monthly API credits, 10 concurrent browsers, custom proxies, persistent sessions, and stealth mode. Growth is $500/month with $500 in credits, 50 concurrent browsers, and 24/7 founder support. Enterprise is custom, with unlimited browsers and credits plus the compliance features. Every plan charges $0.005 per step beyond your included credits.

Against the field, Smooth is priced aggressively. Browserbase, a managed browser infrastructure API, runs free, then $20/month for Developer and $99/month for Startup, but it is lower-level infrastructure rather than a goal-driven agent. Hyperbrowser offers 1,000 free credits and starts at $30/month. Browser Use, the tool Smooth benchmarks against, is open source and free to self-host, though you pay for the LLM provider and you run the infrastructure yourself. So Smooth sits in the middle: more capable and cheaper to operate than rolling your own with Browser Use, and more agent-focused than raw infrastructure like Browserbase.

The one pricing complaint is the gap between tiers. Going from $50 Starter to $500 Growth is a 10x jump with nothing in between, so a team that outgrows Starter faces a sharp step up. The per-step billing also makes high-volume costs harder to forecast. Model your step counts before committing to heavy usage.

Who is Smooth Best For?

Use Smooth if you need reliable browser automation in production and you want it to be fast and cheap. It is an excellent fit for developers building scraping pipelines, automated QA testing, form-filling flows, or social automation, especially when the target sites change often and DOM-based scripts keep breaking. The free tier means solo builders can start for nothing, and the Enterprise tier means large orgs with compliance requirements have a path too.

Skip Smooth if your automation is simple, stable, and high-volume, where a hand-written Playwright script might be cheaper and more predictable than per-step agent billing. Also think twice if you need rock-solid cost predictability, because usage-based pricing can surprise you. And if you have the engineering capacity and want zero per-step fees, the open-source Browser Use route may suit you better, at the cost of running and maintaining the infrastructure yourself.

Best Smooth Alternatives

Browser Use

Browser Use is the open-source agent Smooth benchmarks against, and it is free to use: you only pay for your chosen LLM provider, or you run local models. It is the right pick if you want full control, no per-step fees, and you are willing to host and maintain the setup yourself. The tradeoff is exactly what Smooth claims to fix: Browser Use is slower and more expensive to run at scale in Smooth’s benchmarks, and you own all the operational work.

Browserbase

Browserbase provides managed cloud browser infrastructure with a free tier, a $20/month Developer plan, and a $99/month Startup plan, plus a custom Scale tier. It is lower-level than Smooth: you get reliable headless browsers and sessions, but you bring your own agent logic on top. Choose Browserbase if you already have an automation framework and just need the browser infrastructure. Choose Smooth if you want the agent intelligence included.

Hyperbrowser

Hyperbrowser is another cloud browser API for AI agents, with 1,000 free credits to start and paid plans from $30/month, undercutting on browser-hour pricing with high concurrency on its top tiers. It overlaps heavily with Browserbase as infrastructure. Pick Hyperbrowser if raw browser-hour cost and concurrency are your main concerns. Smooth wins when you value the goal-driven agent layer and the benchmark-leading reliability over pure infrastructure pricing.

Final Verdict: Is Smooth Worth It?

Smooth earns an 8.4, our highest rating in this batch, and it deserves it. It tops the WebVoyager benchmark at 92%, runs faster and cheaper than the open-source tool everyone else compares against, and wraps it all in a clean API, SDK, and CLI with the production features, proxies, CAPTCHA solving, persistent sessions, that actually matter when you ship. The free tier lets you verify the claims yourself before paying a cent, which is the right way to sell a developer tool.

It is not a perfect 10 because it is young and the pricing has rough edges: the $50-to-$500 gap is steep, and per-step billing makes high-volume costs harder to predict. But those are quibbles against a genuinely strong product. If you are building anything that needs to drive a browser reliably and you do not want to babysit brittle scripts, start Smooth on the free tier today. For most teams, it will be faster to ship and cheaper to run than the alternatives, and that combination is hard to beat. Just model your expected step volume before you commit to a paid tier, and the value should hold up well.