OpenAI signed a military contract that its rival Anthropic refused to accept. The deal triggered the most senior resignation in OpenAI's recent history, an unprecedented government blacklisting of an American AI company, and a legal battle that is still unfolding
Caitlin Kalinowski, OpenAI's head of robotics and consumer hardware, resigned on March 7, 2026, over concerns about the company's recently announced Pentagon deal
OpenAI just raised more money in a single round than most countries spend on defense. The $110 billion deal, backed by Amazon, Nvidia, and SoftBank, values the company at $730 billion and reshapes the competitive landscape for every creator who depends on AI tools
OpenAI launched GPT-5.4 on March 5, 2026, introducing native Computer Use mode that lets the model read screens and control mouse and keyboard inputs directly. The release also brings a 1M token context window, 33% fewer factual errors across benchmarks, and 47% token efficiency gains
OpenAI released the Codex coding agent app for Windows on March 4, 2026, expanding beyond the Mac-only launch. The app is temporarily free for ChatGPT Free and Go subscribers, with doubled rate limits for all paid tiers
OpenAI released GPT-5.3 Instant on March 3, 2026, replacing GPT-5.2 Instant as the default model in ChatGPT. The update reduces hallucinations by 26.8% on high-stakes queries, eliminates the preachy tone users complained about, and ships to all ChatGPT users including the free tier
OpenAI closed a $110 billion funding round on February 27, 2026, the largest private financing in history. The deal values the company at $730 billion, more than doubling its $300 billion valuation from just 12 months earlier