Muse Spark 1.2 from @AIatMeta is live on OpenRouter alongside expanded global access to both Muse Spark models.
At $1.25/M in and $4.25/M out, the model builds its position as one of the most price-efficient, high-intelligence models on OpenRouter.
Muse Spark 1.2 is optimized for work that coding agents get handed most: multi-file refactors, long debugging sessions and tasks that run well past a single prompt.
Muse Spark 1.2 is available now on OpenRouter with expanded global access to all Muse Spark models.
https://t.co/77DTbPL5eJ
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
Why it matters
At $1.25 in and $4.25 out per million tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition →, a model tuned for multi-file refactors and long debugging sessions makes sustained AI agentAn AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.Full definition → runs cheaper to operate at volume.
