Browserbase vs Stagehand

Browserbase

Agents

Stagehand

Agents

Tagline

Browserbase

Headless browser infrastructure for AI agents

Stagehand

The SDK for browser agents

Pricing

Browserbase

Freemium· Free tier · from $20/mo

Stagehand

Freemium· SDK is free/open-source (MIT). Runs locally against any LLM API key. Optional Browserbase cloud runtime: Free $0/mo, Developer $20/mo, Startup $99/mo, Scale custom.

Lowest paid tier

Browserbase

$20/mo · Developer Plan

captured 2026-11-07

Stagehand

—

Free trial

Browserbase

Yes

Stagehand

Yes

API

Browserbase

Yes

Stagehand

Yes

Open source

Browserbase

Not listed

Stagehand

Yes

Hacker News stories

Browserbase

21

checked 2026-11-08

Stagehand

2

checked 2026-10-21

Earliest Wayback capture

Browserbase

2003-07-26

earliest archived capture of the site, not a launch date

Stagehand

2025-01-24

earliest archived capture of the site, not a launch date

Model used

Browserbase

Model-agnostic via Model Gateway (OpenAI, Anthropic, Google, others)

Stagehand

Model-agnostic (OpenAI GPT-4o, Anthropic Claude, Google Gemini via Vercel AI SDK)

Best for

Browserbase

AI product teams building agents that must click through real websites, QA teams running LLM-authored end-to-end tests, and data teams extracting content from JS-heavy or authenticated pages.

Stagehand

Developers and automation engineers building resilient web scrapers, QA suites, or autonomous browser agents who want AI-driven selectors on top of Playwright.

Not for

Browserbase

Simple static-HTML scraping (a plain HTTP client is cheaper), consumer users who want a no-code scraper UI, or hobby projects unwilling to move past the 15-minute free-tier session cap.

Stagehand

Non-technical users wanting a no-code RPA builder, or high-volume scraping jobs where per-call LLM cost and latency outweigh the maintenance savings.

Editorial score

Browserbase

—

Stagehand

—

Use cases

Browserbase

AI web-browsing agentsLLM-driven end-to-end testingAuthenticated data extractionForm-filling automationPrice and inventory monitoringJob application automationSaaS onboarding automationBusiness-listing verificationCompetitive intelligence scrapingCustomer-support copilot actions

Stagehand

AI web scrapingAutonomous browser agentsEnd-to-end UI testingStructured data extractionForm-filling automationCompetitor price monitoringRPA replacementQA regression suitesMulti-step research agentsBooking and checkout automation

Pros

Browserbase

• Purpose-built for agent workloads: stealth Chromium, residential proxies, captcha solving, and session persistence are handled for you
• Stagehand SDK (open source) lets LLMs drive pages via act/observe/extract instead of brittle CSS selectors
• Best-in-class observability: session replays, network logs, and live viewer make agent debugging tractable
• Managed Agents, Search API, and Fetch API give teams three altitudes of abstraction from raw browsers to prompt-only
• Trusted at scale by well-known AI companies (Lovable, Clay, Ramp, DeepMind, Amplitude)
• Model Gateway lets you swap OpenAI/Anthropic/Google without changing agent code
• Free tier is real (3 concurrent browsers, 1,000 search + fetch calls) so you can prototype without a card

Stagehand

• Open-source (MIT) and built directly on Playwright, so you never lose escape-hatch access to the raw page, frame, and network APIs
• Natural-language act/extract/observe primitives eliminate most brittle selectors and dramatically reduce maintenance when target sites change
• Zod-schema extraction returns typed, validated data instead of loose JSON, which fits cleanly into typed backends
• Model-agnostic via the Vercel AI SDK — swap OpenAI, Anthropic, Gemini, or a self-hosted model without rewriting the agent
• Optional Browserbase cloud provides stealth browsers, residential proxies, session replay, and captcha handling out of the box
• TypeScript and Python SDKs with good docs, a growing example library, and an active Discord
• observe() lets you inspect proposed actions before executing, which makes debugging and human-in-the-loop review practical

Cons

Browserbase

• Costs scale quickly for high-concurrency workloads once you exceed included browser hours, agent runs, and proxy bandwidth
• Free tier caps sessions at 15 minutes and disables captcha solving, so realistic testing needs a paid plan
• Vendor lock-in on the higher-level Agents/Fetch products; portable Playwright code lives at the lower layer
• Cold-start latency of a fresh browser instance is meaningful for user-facing, sub-second interactions
• Some anti-bot systems still catch managed cloud browsers despite fingerprint evasion, requiring custom proxy tuning
• Compliance features like HIPAA BAA, SSO, and DPA are gated to the custom-priced Scale tier

Stagehand

• Every act/extract call issues an LLM request, so token costs and latency add up fast on large crawls compared with hand-written Playwright
• Non-deterministic by nature — the same prompt can occasionally pick a different element, so critical flows still need assertions and retries
• Cloud features (stealth, proxies, captcha) require a paid Browserbase plan; running purely local means you handle those problems yourself
• Still a young project — API surface and best practices are evolving and breaking changes appear between minor versions
• Requires developer skills (Node/TS or Python) — no visual builder for non-technical automators

Website

Browserbase

www.browserbase.com

Stagehand

stagehand.dev

Editorial score: rule-based, 0–10, from AI-assisted profile inputs (see /methodology) — not a user rating; “—” means unscored. “Not listed” means we have no record of it, not that it is absent. GitHub figures and prices carry the date they were checked or captured; prices are shown as published, unconverted.