# Meta Opens Its First Self-Serve Frontier API With Muse Spark 1.1

The Meta Model API entered public preview for US developers on July 9, accepts both OpenAI and Anthropic request formats, and reportedly prices output at $4.25 per million tokens.

- Published: 2026-07-26T05:32:56.369Z
- Canonical: https://polylog.news/ai/2026-07-26/meta-opens-its-first-self-serve-frontier-api-with-muse-spark
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Meta AI](https://ai.meta.com/blog/introducing-muse-spark-meta-model-api/)

Meta opened the Meta Model API in public preview for US developers on July 9, its first self-serve external access to a frontier model. The model, Muse Spark 1.1, is the successor to the Llama line under Meta Superintelligence Labs, a multi…

This story is for subscribers. Read it in full at https://polylog.news/ai/2026-07-26/meta-opens-its-first-self-serve-frontier-api-with-muse-spark (subscription information: https://polylog.news/pricing).