Meta ships Muse Spark 1.1 and opens the Meta Model API in public preview

Category: AI
Status: confirmed
Sources: Meta AI blog, Meta Model API pricing, HN discussion
Summary: Meta Superintelligence Labs released Muse Spark 1.1 on 2026-07-09, a multimodal model aimed at agentic work: multi-agent orchestration with a 1 million token context and parallel subagent delegation, computer use, coding tasks (bug diagnosis, feature work, large migrations), and image, video, and audio input. Meta launched a public preview of the Meta Model API for developer access, with the model also available in "Thinking" mode in the Meta AI app and at meta.ai. Listed API pricing is 1.25 USD per 1M input tokens, 4.25 USD per 1M output tokens, and 0.15 USD per 1M cached input tokens. The announcement gives comparative claims but publishes no benchmark numbers.
Comments: HN commenters note the pricing undercuts Grok 4.5, especially the cached-input rate, and frame the launch as Meta re-entering the frontier agentic race while conceding it is not at the top.
Why it matters: A major lab adds another agentic model and a priced public API to the model market, one week after reporting that Meta's own agentic development had stalled.
Follow-up: Watch for published benchmarks, open-weight or license terms, and independent evaluation of the subagent and computer-use behavior.