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Muse Spark Open

At a glance

Meta's strongest open-weight model, trained specifically for agentic coding workflows.

1.0M ctx$1.25/$4.25 per M
Demos
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AI Output
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Benchmarks
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Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
1.0M
Context
256K
Max output
Oct 2026
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$1.25/M tokens
Output$4.25/M tokens
Cache read$0.15/M tokens
Chat with Muse Spark OpenGo to model