Availability

Publicly available

Provider

NVIDIA

Country

USA

Family

Nemotron

Status

Current

Weights

Open

Release date

2026-06-04T00:00:00.000Z

Modalities

text (both)

Licence

other

Knowledge cutoff

2025-09-01T00:00:00.000Z

Total parameters

550 billion

Active parameters

55 billion

Aliases

nvidia/nemotron-3-ultra-550b-a55b

Capabilities

• tool_use
• reasoning · primary

Traits

• context_window1,000,000 tokens