Anthropic's Claude Opus 4 outperforms OpenAI's GPT-4.1 with unprecedented seven-hour autonomous coding sessions and record-breaking 72.5% SWE-bench score, transforming AI from quick-response tool to day-long collaborator.

Operator is one of several agentic tools created by AI firms as they race to build agents capable of reliably performing digital tasks with minimal supervision.

OpenAI is updating the AI model powering Operator, its AI agent that can autonomously browse the web and use certain software within a cloud-hosted virtual machine.

Microsoft is continuing to expand its fleet of AI partners, hedging its bets beyond its high-profile partnership with OpenAI — a change that’s coming into sharper focus this week at the company’s Build developer conference.

Anthropic’s first developer conference kicked off in San Francisco on Thursday, and while the rest of the industry races toward artificial general intelligence, at Anthropic the goal of the year is deploying a “virtual collaborator” in the form of an autonomous AI agent.

The quirky leader of the $61 billion AI startup Anthropic talked about the near- and long-term future of AI at his company's developer event in San Francisco.

Amazon-backed Anthropic announced Claude Opus 4 and Claude Sonnet 4 on Thursday, touting the advanced ability of the models.

OpenAI had just 300 employees when it launched ChatGPT. Within a year, it doubled in size, causing chaos and high turnover for employees.