Muse Spark Open 816B-A42B NVFP4 checkpoint (meta-models/Muse-Spark-Open-816B-A42B-NVFP4), ModelOpt NVFP4 experts (excl. layers 0/61, attn, lm_head), BF16 MoE, 1M context, multimodal (image/video/audio).
Muse Spark Open 816B-A42B NVFP4 can be customized with your data to improve responses. Fireworks uses LoRA to efficiently train and deploy your personalized model
On-demand deployments allow you to use Muse Spark Open 816B-A42B NVFP4 on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.