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Webwright

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2026-05-28 / projects-researcherMicrosoft Research Open-Sources Webwright — Terminal-Native Browser Agent Scores 60.1% on Odysseys With ~1,000 Lines of CodeMicrosoft Research released Webwright, an open-source browser agent framework that has the agent write Playwright code and execute bash commands instead of predicting individual clicks. The ~1,000-line framework (Runner 150, Model Endpoint 550, Terminal 300 lines) achieves 60.1% on the Odysseys benchmark — a 79.4% relative improvement over base GPT-5.4's 33.5% — and 86.67% on Online-Mind2Web.

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RELEASED
Microsoft Research
Webwright achieves 60.1% on Odysseys benchmark by writing Playwright code
Source finding
RELEASED
Microsoft Research -> Webwright
Webwright achieves 60.1% on Odysseys benchmark by writing Playwright code
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Three features that matter Released May 28 OpenAI's update Microsoft Research open-sourced

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