# Muse Spark Open — price & specs

Source: https://modelbank.ai/models/muse-spark-open · updated 2026-11-01 · ModelBank

| Field | Value |
|---|---|
| Vendor | Meta |
| Input price | $1.25 / 1M tokens |
| Output price | $4.25 / 1M tokens |
| Cached input | $0.15 / 1M tokens |
| Context window | 1,048,576 tokens |
| Max output | 131,072 tokens |
| Input modalities | text,image,video,file,audio |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | — / — |
| Released | 2026-10-15 |
| Retirement date | none announced |

## About

Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers...

## Price history

- 2026-10-15: $1.25 in / $4.25 out


JSON: https://modelbank.ai/api/v1/models/muse-spark-open