Muse Spark Open
NEWMeta · Open weights · Released Oct 15, 2026 · meta/muse-spark-open
Best $1.25 in / $4.25 out via BaseTen · fp4
1.05M contextVisionToolsReasoningStructured outputPrompt cachingAudio inputOpen weights
Available from 5 providersUSD / MTOK · PRICES 27 MINUTES AGO
EST. MONTHLY COSTclick a row for detail · click headers to sort
| PROVIDER | INPUT | OUTPUT | CACHE | CONTEXT | QUANT | TTFT | TPS | UPTIME |
|---|---|---|---|---|---|---|---|---|
 BaseTen | $1.25 | $4.25 | $0.15 | 1.05M | fp4 | — | — | 100.0% |
 Fireworks | $1.25 | $4.25 | $0.15 | 1.05M | — | — | — | 86.1% |
 Modal | $1.25 | $4.25 | $0.15 | 1M | — | — | — | 100.0% |
 Nebius | $1.25 | $4.25 | — | 1.05M | fp4 | — | — | 87.4% |
 Together | $1.25 | $4.25 | $0.15 | 1.05M | — | — | — | 93.9% |
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Pricing variants · USD / MTok in / out
STANDARD
$1.25 / $4.25
per MTok in / out
CACHE READ $0.15
Recent changesRSS ↗
Oct 16, 2026model added
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...
Specifications
Context window1,048,576
Max output943,718
Modalities intext, image, video, file, audio
Modalities outtext
LicenseOpen weights
ReleasedOct 15, 2026
TokenizerOther
WeightsHugging Face ↗
Open weightsGATED
safetensorspytorch
Related
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[](https://modelindex.ai/models/meta/muse-spark-open)Sources
OpenRouter API27 minutes ago
AGGREGATORHugging Face27 minutes ago
COMMUNITYVerified 27 minutes ago · list prices, not negotiated rates.