Models / Meta
Muse Spark Open
by Meta ·
meta/muse-spark-openMuse 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...
reasoningtool-usevisionreleased 2026-10-15
Legal score · raw
-
not yet benchmarked
Context
1.05M
max output 944K
Input
$1.56
per 1M tokens
Output
$5.31
per 1M tokens
Suite cost
-
no run recorded
Prompt caching
Grounded answers re-send the same retrieved authority every turn, so a cached read is what a long matter actually costs. Prices are per 1M tokens, from the provider’s own catalog.
Cache read
$0.19
8.3x cheaper than uncached
Uncached input
$1.56
per 1M tokens
Capabilities
Modalities
in textimagevideofileaudio
out text
Request parameters it accepts
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokensmin_ppresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p
Benchmark results
This model has not been run through the suite yet. See Humanity's Last Lawsuit for the benchmark models are ranked on.