Muse Spark Open
NewPremiumMeta's strongest open-weight model, trained specifically for agentic coding workflows.
1M-token context accepting text, image, video, audio and PDF input, with higher first-attempt accuracy, reliable tool calling, and deep codebase understanding.
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Muse Spark Open is somewhat expensive at $1.25/M tokens input and $4.25/M tokens output. Cached input reads are priced at $0.15/M tokens, making repeated context cheaper. The model supports vision/image input, audio input, extended reasoning, a 1M context window.
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Compare with
GPT 6 Astravs Muse Spark OpenGPT 6.1 Sol Provs Muse Spark OpenGPT 6.1 Solvs Muse Spark OpenGPT 6 Lunavs Muse Spark Open
Claude Fable 5.1vs Muse Spark OpenClaude Opus 5.5vs Muse Spark OpenClaude Sonnet 5.5vs Muse Spark Open
Gemini 3.8 Flashvs Muse Spark OpenGemini 4 Argonvs Muse Spark OpenGemma 4 31Bvs Muse Spark Open
Grok 4.7vs Muse Spark OpenGrok Build 0.1vs Muse Spark Open
Muse Wondervs Muse Spark Open
DeepSeek V4 Pro (0813)vs Muse Spark OpenDeepSeek V4.1 Flash 1017vs Muse Spark Open
MiniMax M3vs Muse Spark Open
Kimi K3vs Muse Spark OpenKimi K2.7 Codevs Muse Spark Open
GLM 5.3vs Muse Spark OpenGLM 5.3 Flashvs Muse Spark Open
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Nemotron 3 Ultravs Muse Spark OpenNemotron 3.5 Super VLvs Muse Spark OpenFrequently Asked Questions about Muse Spark Open▼
When was Muse Spark Open released?
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Muse Spark Open was released on October 15, 2026.
Who created Muse Spark Open?
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Muse Spark Open was created by Meta Superintelligence Labs.
How much does Muse Spark Open cost?
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Muse Spark Open costs $1.25/M input tokens and $4.25/M output tokens.
What is Muse Spark Open API pricing?
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The Muse Spark Open API is priced at $1.25 per million input tokens and $4.25 per million output tokens. You can access Muse Spark Open through idapt.app alongside 200+ other AI models in one workspace.
Is Muse Spark Open a reasoning model?
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Yes, Muse Spark Open is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does Muse Spark Open support image or vision input?
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Yes, Muse Spark Open supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does Muse Spark Open support audio?
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Yes, Muse Spark Open supports audio input, allowing it to process and respond to voice and audio files.
What is the context window of Muse Spark Open?
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Muse Spark Open has a context window of 1M tokens, meaning it can process approximately 786,432 words of context at once.
Is Muse Spark Open open source?
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Muse Spark Open is a proprietary model developed by Meta Superintelligence Labs. The model weights and training data are not publicly available.
What is Muse Spark Open good at?
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Based on benchmark data, Muse Spark Open excels at: visual analysis and image understanding. It is Meta Superintelligence Labs's capable model suitable for a wide range of tasks.
Where can I use Muse Spark Open?
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You can chat with Muse Spark Open on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Muse Spark Open through Meta Superintelligence Labs's own API or platform.