Basic
Muse Spark Open
muse-spark-open
Meta's open-weight model built for coding: first-try accuracy and reliable tool calls.
Technical Specifications
| API Identifier | muse-spark-open |
|---|---|
| Plans | Basic |
| Maximum Context | 1M tokens |
| Vision (images) | ✓ Yes |
| Native Web Access | No |
| Image Generation | No |
| Input Cost | $1.25 / M tokens |
| Output Cost | $4.25 / M tokens |
Overview
Muse Spark Open is an open-weight model from Meta, trained specifically for agentic coding workflows. It targets higher first-attempt accuracy, reliable tool calling and deep codebase understanding, with a 1-million-token context. Released on October 15, 2026, it is available on Mingo's Basic plan for coding.
Strengths
Agentic codingReliable tool callsOpen weights
Ideal Use Cases
Understand a repository
Explain how a project is organized and where to make changes.
First-try fix
Propose a targeted change that works on the first attempt.
Pricing
Input Tokens
$1.25
per million tokens
Output Tokens
$4.25
per million tokens
Related Models
Frequently Asked Questions
Which Mingo plan gives access to Muse Spark Open?
Muse Spark Open is included in the following Mingo plans: Basic. Mingo's router selects it automatically when it is the best fit for your request, and you can also pick it manually.
What is the difference between Muse Spark Open and Muse Spark 1.3?
Muse Spark Open specializes in coding and its weights are published. Muse Spark 1.3 is a more general-purpose multimodal reasoning model.
Use Muse Spark Open on Mingo
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