Anthropic Unveils Claude Opus 4.6; AI Investments Drive Tech Sector Volatility

Anthropic announced the release of Claude Opus 4.6 on February 5, expanding its context window from 200,000 to 1 million tokens and enhancing reasoning and coding capabilities. The update is designed to strengthen Cowork AI for office and coding tasks, potentially challenging specialized software in legal, finance and tech sectors. The stock reaction has been sharp: software ETFs declined over 6% on Tuesday, with Thomson Reuters (-15.83%) and Legalzoom (-19.8%) among the steepest falls. The Nasdaq posted its worst two-day decline since April and fell another 0.7% on Thursday. Key metrics: The new model outperforms OpenAI’s GPT-5.2 on knowledge work benchmarks and introduces research-preview PowerPoint integration with AI-generated slides aligned to corporate templates. Oxford Economics reported 8% fewer CS and math graduate job offers since 2022, while 90% of tech workers use AI at work. Analysts caution security and IT integration concerns will limit immediate replacement of legacy tools, though competition is intensifying with Anthropic’s Cowork plugins and OpenAI’s new AI agent platform released earlier this week.