Meta

Meta released Muse Spark Open on Thursday, October 15, calling it the most capable United States open-weight model to date. Unlike a closed system that stays behind a company API, an open-weight release lets developers download the trained parameters, adapt the model, and run it on their own hardware. Meta is aiming this one squarely at coding and agentic work: long, multi-step software tasks that require reasoning, tool use, and sustained context rather than a single quick answer.

The AI agent wars are coming to the Windows desktop — and Microsoft just gave stage time to a rival.

At its Windows and Surface event in San Francisco on October 7, Microsoft announced that Meta's Muse personal AI agent is coming to Windows as a native app. Pavan Davuluri, Microsoft's executive vice president of Windows and Devices, said Muse for Windows would arrive "coming soon" with MXC integration — a notable move from a company that is simultaneously pushing its own Copilot agent.