Project Mariner vs Gemini Agent vs Browser Use vs Browserbase
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Project Mariner
Google's web-browsing agent — discontinued 4 May 2026, absorbed into G...
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GA Gemini Agent Google's browsing agent, and Project Mariner's successor — US and Engl... Visit | BU Browser Use Open-source Python library that lets LLM agents drive a real web brows... Visit |
Browserbase
Managed-browser infrastructure for AI agents
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| RECATOOLS Score | 4.2 / 10 | 6.6 / 10 | 8.2 / 10 | 7.6 / 10 |
| Capability | — | |||
| Value for money | — | |||
| Ease of use | — | |||
| ASEAN readiness | — | |||
| API quality | — | |||
| Pricing | Free | Paid | Freemium | Freemium |
| Free tier | Was free while it ran; Google shut the experiment down on 4 May 2026 | — | Library free under MIT (BYO LLM key); Cloud has a $0 Free plan | Free: 3 concurrent browsers, 1 browser hour, 3 agent runs and $5 of model tokens a month |
| Paid from | — | Included with Google AI Pro, from $19.99/mo | $29/month (Browser Use Cloud Dev plan) | $20/month (Developer, 100 browser hours) — Startup $99, extra hours $0.10–$0.12 |
| Has API | ✗ | ✗ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✓ | ✗ |
| Free to use | ✓ | ✗ | ✓ | ✓ |
| Users | — | — | — | — |
| Founded | 2024 | — | — | 2024 |
| Maker | — | — | — | |
| Verdict | Project Mariner was Google DeepMind's research-preview AI agent that could navigate websites and complete multi-step web tasks (forms, research, shopping) much like a human, an important early demonstration of agentic br... |
The supported successor to Project Mariner, bundled into a Gemini subscription rather than sold on its own — so if you already pay for AI Pro, trying it costs nothing.Read the regional limit first. It is US-only and Engl... |
Think of Browser Use as an agent automation tool first and a scraper second. It's a Python library that gives an LLM control of a real Chromium browser through the Chrome DevTools Protocol, using the project's open-sourc... |
Browserbase provides managed, scalable headless-browser infrastructure purpose-built for AI agents and web automation, with session recording, stealth/anti-bot handling, and the Stagehand SDK for natural-language browser... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.