Muse Spark 1.2 Contributor vs Muse Spark 1.3 Contributor

Lower and Larger mark one number at a time; they don’t rank the models. How well a model does depends on your task; see Benchmarks for measured results.

DetailMuse Spark 1.2 Contributormeta/muse-spark-1.2-contributorMuse Spark 1.3 Contributormeta/muse-spark-1.3-contributor
Makermetameta
KindChatChat
Input per 1M tokens$0.105$0.105
Cached input per 1M tokens$0.0021$0.0021
Cache write per 1M tokensSame as inputSame as input
Output per 1M tokens$0.21$0.21
Context window1,048,576 tokens1,048,576 tokens
Max output1,048,576 tokens1,048,576 tokens
CapabilitiesReasoning, tool use, vision, file inputReasoning, tool use, vision, file input
TakesText, image, pdfText, image, pdf
ReturnsTextText
Zero data retentionNot on every providerNot on every provider
No training on requestsNot on every providerNot on every provider
Released2026-08-052026-09-02

Example costs

Example requests, priced at today’s rates with no cached input.

Example requestMuse Spark 1.2 ContributorMuse Spark 1.3 Contributor
1,000 tokens in, 200 out$0.000147$0.000147
10,000 tokens in, 1,000 out$0.00126$0.00126
100,000 tokens in, 4,000 out$0.01134$0.01134