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Muse Spark Open 816B-A42B NVFP4

Pricing & Specs API
Free REST API for prices, specs and benchmarks
Muse Spark Open 816B-A42B NVFP4 is Meta's language model. An NVFP4-quantized checkpoint of Meta's sparse Mixture-of-Experts multimodal model, supporting long context and multimodal image, video, and audio understanding.
Specifications
Canonical IDmeta-muse-spark-open-nvfp4
TypeLanguage
StatusActive
CreatorMetaMeta
Input ModalitiesText
Output ModalitiesText

Capabilities

Input1/5
Text✓
Image·
Audio·
Video·
PDF·
Output1/5
Text✓
Image·
Audio·
Video·
Embedding·
Capabilities0/13
Reasoning·
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Muse Spark Open1.0M$1.25$4.25Available
Muse Spark Open 816B-A42B NVFP4————Current

Model IDs

accounts/fireworks/models/muse-spark-open-nvfp4
meta-muse-spark-open-nvfp4