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Muse Spark 1.2 – Model Docs — Person.run

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Muse Spark 1.2

A coding-optimized model purpose-built for agentic workflows. Improvements to code generation, debugging, and codebase understanding — with a 1M context window that handles your entire project in one session.

Model overview

Model ID: meta/muse-spark-1.2
Provider: meta
Type: language
Context window: 1,048,576 tokens
Max output tokens: 1,048,576

Tags: reasoning, tool-use, implicit-caching, file-input, vision

Model pricing

Metric	Value
`Input tokens (/1M)`	`$1.25`
`Output tokens (/1M)`	`$4.25`
`Image generation`	`n/a`
`Cached input read (/1M)`	`$0.15`
`Cached input write (/1M)`	`n/a`
`Pricing source`	`gateway`

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