# Meta Opens Muse Spark 1.1 to Developers via a Cheaper Model API

The multimodal agentic model carries a 1-million-token context window and prices at $1.25 input and $4.25 output per million tokens, undercutting frontier rivals.

- Published: 2026-07-18T06:03:03.819Z
- Canonical: https://polylog.news/ai/2026-07-18/meta-opens-muse-spark-1-1-to-developers-via-a-cheaper-model
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Meta AI](https://ai.meta.com/blog/introducing-muse-spark-meta-model-api/), [CNBC](https://www.cnbc.com/2026/07/09/meta-jumps-into-ai-coding-market-to-chase-anthropic-and-openai.html)

Meta has opened Muse Spark 1.1 to developers through a new Model API now in public preview. The Model API is an application programming interface (API), and the release is Meta's second from Meta Superintelligence Labs and its clearest move…

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