Muse Spark 1.1 API Pricing & Cost Calculator

How this is calculated

Muse Spark 1.1 is priced at $1.25 per million input tokens and $4.25 per million output tokens, with an 88% prompt caching discount ($0.15 per million cached reads). That's competitive with GLM-5.2 ($1.40/$4.40) and cheaper than Gemini 3.6 Flash ($1.50/$7.50) on output.

Verdict

Muse Spark 1.1 lands at $1.25/M input and $4.25/M output, slightly cheaper than GLM-5.2 on both rows and decisively cheaper than Gemini 3.6 Flash on output ($4.25 vs $7.50). The 88% cache discount drops cached input to $0.15/M, faster than GLM's ~81% and within reach of Gemini 3.6 Flash's 90% cache rate. That puts Muse Spark 1.1 in the workhorse tier where it competes on per-token cost against both GLM-5.2 and Gemini Flash, with the cache discount doing the heavy lifting on stable-prompt loops. The use case: high-volume text pipelines where output cost dominates and where Meta's lineage matters for the workload.