Browserbase vs H Company (Runner H / Holo) vs Operator by OpenAI vs Project Mariner
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Browserbase
Managed-browser infrastructure for AI agents
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H Company (Runner H / Holo)
Paris agent lab whose Holo 3 claims to beat GPT-5.4 on cost
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Operator by OpenAI
OpenAI's autonomous web-browsing agent
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Project Mariner
Google's web-browsing agent inside Chrome
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| RECATOOLS Score | 7.6 / 10 | 6.8 / 10 | 4.8 / 10 | 4.2 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Paid | Freemium | Subscription | Free |
| Free tier | — | — | — | — |
| Paid from | — | — | — | — |
| Has API | ✓ | ✓ | ✗ | ✗ |
| Open source | ✗ | ✗ | ✗ | ✗ |
| Free to use | ✗ | ✓ | ✗ | ✓ |
| Users | — | — | — | — |
| Founded | 2024 | 2023 | 2025 | 2024 |
| Maker | — | — | — | — |
| Verdict | 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... |
H Company's research pedigree is real: the founding team came out of DeepMind, and the $220 million seed (Eric Schmidt, Amazon, Accel among the backers) was Europe's largest at the time. Holo 3's claimed 78.9% on OSWorld... |
Operator was OpenAI's research-preview browser agent that could navigate websites to shop, book and fill forms using a Computer-Using Agent model. It showcased genuinely impressive (if uneven) autonomous web interaction... |
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... |
| 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.