{"slug": "show-hn-browser-agent-cost-efficient-browser-automation", "title": "Show HN: Browser Agent – cost efficient browser automation", "summary": "A developer's Browser Agent harness outperforms Browser Code on the BU Bench v1 benchmark, achieving an 88% success rate at $5.37 and 32,694 seconds, compared to Browser Code's 78% success rate at $8.34 and 47,970 seconds. The harness uses 91% fewer tokens, aiming to reduce compute and VRAM costs for fine-tuning a small specialized model, and enables per-task pricing as a counter-positioning strategy against token-based pricing from frontier labs.", "body_md": "I've built a browser agent harness that outperforms Browser Code on their own benchmark (BU Bench v1), on success rate, speed and cost.\n\nBrowser Agent: 88% success rate, $5.37, 32,694 seconds Browser Code: 78% success rate, $8.34, 47,970 seconds\n\nFor browser agents to become ubiquitous, they need to be faster, cheaper, and more reliable. The harness was built with token efficiency in mind (and uses 91% fewer tokens than Browser Code) to reduce the compute and VRAM budget necessary to fine tune a small, specialised model.\n\nBecause browser agent inference is intermittent, a small specialised model could serve each step with minimal GPU time. This makes per-task pricing viable, offering users cheaper, more predictable costs and giving the operator a counter-positioning advantage over frontier labs pricing their models by token usage.\n\nMore about the comparison between Browser Agent and Browser Code here: [https://www.pierrebarreau.com/blog/improving-the-state-of-th...](https://www.pierrebarreau.com/blog/improving-the-state-of-the-art-in-agentic-browsing)\n\nIf anyone is interested in fine tuning that model, would love to talk!\n\nComments URL: [https://news.ycombinator.com/item?id=49257523](https://news.ycombinator.com/item?id=49257523)\n\nPoints: 3\n\n# Comments: 0", "url": "https://wpnews.pro/news/show-hn-browser-agent-cost-efficient-browser-automation", "canonical_source": "https://github.com/visnia-ai/browser-agent", "published_at": "2026-08-11 12:53:46+00:00", "updated_at": "2026-08-11 13:13:28.813822+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "ai-infrastructure"], "entities": ["Browser Agent", "Browser Code", "BU Bench v1", "Pierre Barreau"], "alternates": {"html": "https://wpnews.pro/news/show-hn-browser-agent-cost-efficient-browser-automation", "markdown": "https://wpnews.pro/news/show-hn-browser-agent-cost-efficient-browser-automation.md", "text": "https://wpnews.pro/news/show-hn-browser-agent-cost-efficient-browser-automation.txt", "jsonld": "https://wpnews.pro/news/show-hn-browser-agent-cost-efficient-browser-automation.jsonld"}}