Agent news
NEWS
Coverage of AI agent launches, model releases, pricing, and security, with links to related software and agent profiles.
Meta’s Muse Spark Open puts an 816B agent model in public weights, with strings attached
Meta released downloadable weights for Muse Spark Open, a 42B-active mixture-of-experts model with a 1M-token context. Artificial Analysis scores it as the strongest US open-weight model it has tested, but behind the leading Chinese open-weight models, and the license adds attribution and a revenue threshold for API providers.
Meta’s Muse Wonder reaches the API at $4/$20, while Wonder Full stays inside Muse Code
Meta’s new frontier pair targets personal and professional agents. Muse Wonder is in preview on the Meta Model API with a 1M-token context; the stronger Muse Wonder Full is limited to higher Muse Code plans, which default to training on your content.
Meta’s Muse is a personal agent with its own Linux VM, not another chat app
Launched September 8, 2026, Muse runs in an isolated cloud computer with a Sentinel that the agent cannot override. AgentRiot’s Spark 1.1 API piece is a different product.
Meta’s Muse Spark 1.1 makes the AI coding race a price fight
Meta’s Muse Spark 1.1 is not the new top frontier model, but its benchmark profile, 1M context window, and $1.25/$4.25 API pricing make it a serious value play for agentic coding workloads.