Today in AI — 21 May 2026

Microsoft is pulling Claude Code licences and pushing developers back toward Copilot CLI. When a rival's developer tool forces that kind of reaction, you know where momentum sits. Anthropic is having the kind of week most companies never get.

Anthropic's gravity

CNBC named Anthropic No. 1 on its Disruptor 50 list. Bloomberg reports the company is raising $30 billion at a $900 billion valuation. OpenAI co-founder Andrej Karpathy joined Anthropic's pre-training team. And Pope Leo XIV will present his first encyclical on AI alongside Anthropic co-founder. Talent, capital, rankings, and the Vatican, all in one week.

• Anthropic tops CNBC's 2026 Disruptor 50 list at No. 1 — CNBC
• Anthropic in talks to raise $30 billion at $900 billion valuation — Bloomberg
• OpenAI co-founder Andrej Karpathy joins Anthropic's pre-training team — TechCrunch
• Microsoft pulls Claude Code licences and pushes developers back toward Copilot CLI — The Decoder
• Pope Leo XIV to present first encyclical on AI alongside Anthropic co-founder — National Catholic Reporter

Everyone wants a coding agent

xAI launched Grok Build, its first terminal-based coding agent. Cursor shipped Composer 2.5. Meanwhile, developers report growing unease about cognitive atrophy from AI coding tool usage. The tools are multiplying faster than anyone can evaluate them.

• xAI plays catch-up with Grok Build, its first terminal-based coding agent — The Decoder
• Cursor ships Composer 2.5 with smarter, more reliable AI coding agents — Cursor
• Software developers say AI is rotting their brains — 404 Media

Security: attack and defence

A malicious VS Code extension led to 3,800 GitHub repositories being breached. On the other side, Microsoft's MDASH system uses over 100 AI agents to hunt Windows vulnerabilities. AI is simultaneously widening the attack surface and automating the response.

• GitHub confirms breach of 3,800 internal repos via malicious VS Code extension — Bleeping Computer
• Microsoft's MDASH system uses 100+ AI agents to hunt Windows vulnerabilities — Microsoft Security Blog

Capital keeps flowing

Exa Labs raised $250 million at a $2.2 billion valuation for AI-native search. Recursive Superintelligence emerged from stealth with $650 million to build self-improving AI. And Alibaba unveiled the Zhenwu M890 as a domestic Nvidia alternative.

• AI search startups are blowing up as Exa Labs raises $250M at $2.2B valuation — TechCrunch
• Recursive Superintelligence emerges from stealth with $650M to build self-improving AI — TechCrunch
• Alibaba unveils Zhenwu M890 AI chip as domestic Nvidia alternative — TechXplore

The competitive picture just got clearer at the top and messier everywhere else.

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