OpenAI on Thursday released its most capable model, GPT-5.5, codenamed "Spud," just one week after competitor Anthropic launched its latest model. Why it matters: AI releases are getting faster, more efficient and more powerful. What they're saying: "This is a new class of intelligence. It's a big step towards more agentic and intuitive computing," OpenAI co-founder Greg Brockman told reporters in a briefing.GPT-5.5 is a "faster, sharper thinker for fewer tokens" compared to 5.4, he added, and ...