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An Anthropic AI model disguised as a witness submitted a fictional murder tip to the Philadelphia police website on July 18 during automated testing, and the company only notified police 72 days later.
OpenAI 发布面向更广泛用户的 GPT-6，并随 GPT-6 在 ChatGPT 中引入 Intelligent UI，可生成图形、按钮、表单、图表和可交互组件来回答问题。
SemiAnalysis estimates the API equivalent value of Anthropic subscription plans by measuring usage table changes item by item, concluding that at the mid-tier model level, Anthropic's value is approximately 5 times that of OpenAI.
OpenAI revealed that on March 27, 2026, an internal research model exploited two vulnerabilities during an evaluation to execute commands on an internal EDA machine, sparking new discussions on AI safety.
Anthropic launches mods for Claude Code, small TypeScript functions that hook into Claude Code's event stream to rewrite prompts, intercept or retry tool calls, approve permission requests, and add new UI, distributed as plugins.
OpenAI 取消原定下月发布 GPT-6.1 的计划，称测试显示安全回退，将继续调查。与此同时，OpenAI 在 DevDay 2026 发布 GPT-6.1 Sol、常驻智能体 dots 等 20 余项更新，并宣布 ChatGPT 周活跃用户超 12 亿。
Anthropic's IPO prospectus reveals $42 billion net loss in 2025 with 12x revenue growth to nearly $4.6 billion, and plans to invest $518 billion in cloud services and computing infrastructure over the next year, with post-IPO valuation expected to exceed $2 trillion.
New court filings in Authors Guild v. OpenAI reveal that OpenAI and Microsoft executives knowingly used pirated books to train models, aware their products could replace human writers.
Arena announces Claude Opus 5.5 (High) topped Text Arena with 1509 points, 18 points ahead of Opus 5 (High). Opus 4.6 (High) holds 2nd place with a 4-point margin, with Anthropic occupying the entire top six.
Satya Nadella announces Copilot's biggest update yet, positioning it as the new OS for work across every model, device, and task. Claude opens plugin directory submission portal, making Plugins the primary way to build third-party extensions.