Meta
Meta: Muse Spark Open
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...
muse-spark-openCatalog preview. Paid requests for this model are not enabled yet.
Pricing
~41%USD. No uRouter markup. Live prices can change.
- Input
- $0.7375 / 1,000,000 tokens
- Output
- $2.5075 / 1,000,000 tokens
- Cache read
- $0.0885 / 1,000,000 tokens
- Cache write
- $0.7375 / 1,000,000 tokens
Model details
- Input
- text, image, video, file, audio
- Output
- text
- Context window
- 1,048,576 tokens
- Maximum output
- 524,288 tokens
- Availability
- Uncapped capacity
- Updated
- 11/8/2026, 1:57:54 AM UTC
Capacity is reserved when your request is accepted.
Price history
Observed best prices · Last 24 hours · UTC
$0.7375/ 1,000,000 tokens
Capabilities
chatstreamingvisiontoolsreasoningjson mode
Supported parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_pListed capabilities describe the model. uRouter execution support is verified separately.