Google shuts down Project Mariner; Anthropic and OpenAI also hit limits

Google 关掉 Project Mariner，Anthropic 和 OpenAI 其实也没跑通

Google quietly shut down Project Mariner on May 4, and the post says Google, Anthropic, and OpenAI reached the same conclusion: standalone browser agents do not work, while GUI automation still has room outside headless dedicated environments.

Why it matters: HKR-H/K/R all pass: the shutdown date, route-level claim, and Google/OpenAI/Anthropic contrast carry signal. Single-source summary lacks an official notice or failure metrics, so this stays in the low featured band.