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Meta[1] AI Research's post 'Introducing Muse Spark 1.1' is dated July 9, 2026 and begins 'Today, we're excited to introduce Muse Spark 1.1'; TechCrunch[5] reported the launch the same day, while OpenRouter's[2] 16 July listing is when the router added it.Meta releases Muse Spark 1.1, a multimodal reasoning model for agentic tasks with a 1M-token context window, together with a public preview of the Meta Model API at $1.25 per 1 million input tokens and $4.25 per 1 million output tokens; it scores 51 on the Artificial Analysis Intelligence Index.
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