This week, American labs released several new AI models, including Meta's Muse Spark 1.1, OpenAI's GPT-5.6 family, xAI's Grok 4.5, OpenAI's GPT-Live-1 voice models, and its ChatGPT Work agent. OpenAI's new budget model, Luna, costs a fifth of its predecessor's price, while Grok 4.5 costs less than half the price of Anthropic's comparable Opus model. Meta is making price its differentiator, with Zuck promising much lower costs than OpenAI or Anthropic. The new ChatGPT interface is fully agentic, with OpenAI stating it can "take action across your apps and files, stay with a project for hours" and "turn a goal into finished work." OpenAI's GPT-Live-1 models listen and speak at the same time, allowing interruptions or live translation, as OpenAI bets voice becomes "the primary interface to computing." OpenAI is launching a keyboard next week with one giant button: a mic.