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Nemotron 3 Ultra

Model
NVIDIAFamily NVIDIA Nemotronactive

Open 550-billion-parameter mixture-of-experts model for long-running agents and complex workflows.

Released
Jun 4, 2026
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Modality
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Open source
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API available
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Releases
1

Releases

1
Jun 4, 2026Nemotron 3 Ultra becomes availableNemotron 3 Ultra · 3 Ultra

NVIDIA made the 550-billion-parameter Nemotron 3 Ultra open model available for long-running agent workflows.

NVIDIA Newsroom Open weightsNVIDIANemotron 3 Ultra