NVIDIA Nemotron 3 Ultra is live on Fireworks, day zero

NVIDIA's Nemotron 3 Ultra is an open model designed to optimize long-running autonomous tasks such as coding agents and complex enterprise workflows, boasting 550B total parameters with a hybrid Transformer-Mamba MoE architecture and a 1M context. It offers 5x faster inference and up to 30% lower cost for agentic tasks compared to other open models, and is supported by Fireworks, a high-performance inference platform using the latest NVIDIA GPUs and proprietary optimizations for increased throughput. Nemotron 3 Ultra is available for both inference and post-training on Fireworks, allowing seamless transition from training to production without system handoffs, and can be customized through supervised fine-tuning and direct preference optimization. The platform provides on-demand deployments with dedicated GPUs and predictable performance, making it cost-effective and efficient for enterprises looking to enhance their AI capabilities.

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