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NVIDIA releases Nemotron 3 Ultra, a 550B open model for agents

NVIDIA releases Nemotron 3 Ultra, a 550B open model for agentsNVIDIA Developer Blog

550B total parameters, 55B active, hybrid Mamba-Attention MoE with 1M context window. Up to 5x faster inference and 30% lower cost for agentic tasks. Weights available on HuggingFace; available on Perplexity for Pro/Max users.

nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-NVFP417 days agonvidia
nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF1618 days agonvidia
RT @NVIDIAAI: Today we're shipping Nemotron 3 Ultra. A 550B MoE frontier-intelligence open model...18 days agoHugging Face
Nemotron 3 Ultra is now available for Pro and Max subscribers on Perplexity and Computer. It's...16 days agoPerplexity AI
RT @HuggingPapers: NVIDIA just released Nemotron 3 Ultra on Hugging Face 550B total params, 55B...18 days agoHugging Face
America's leading open-source model, Nemotron 3 Ultra, is now available on Perplexity for all Pro...16 days agoAravind Srinivas
Introducing NVIDIA Nemotron 3 Ultra18 days agoNVIDIA
Nemotron 3 Ultra now available on AI Gateway18 days agoJerilyn Zheng
Nemotron 3 Ultra Tutorial: Build an Autonomous Research Agent with NemoHermes and OpenCode16 days agoNVIDIA Developer
Introducing NVIDIA Nemotron 3 Ultra: An Open 550B Model for Long-Running Agents18 days agoNVIDIA Developer
Ask the Experts: Nemotron 3 Ultra | Nemotron Labs16 days agoNVIDIA Developer
NVIDIA announces Nemotron 3 Ultra21 days agothemixtergamesDiscuss
AMD & Intel, now onwards it's your turn to release your own models17 days agopmttyjiDiscuss
RT @alvarobartt: NVIDIA Nemotron 3 Ultra is here to supercharge your agents! 550B MoE, 55B active...18 days agoHugging Face
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Jun 4, 1:02 PM
NVIDIA releases Nemotron 3 Ultra, a 550B open model for agents — AIBriefs