NVIDIA: Nemotron 3 Ultra (free)
Released Jun 4, 2026Try it on:
NVIDIA Nemotron 3 Ultra is an open frontier-reasoning and orchestration model from NVIDIA, with 55B active parameters out of 550B total (MoE). Built on a hybrid Transformer-Mamba mixture-of-experts architecture, it...
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Capabilities
Modality
text->textContext
1M tokens
Tokenizer
Other
Max output
66K tokens
Moderation
Unmoderated
Hugging Face
Supported parameters
include_reasoning
max_tokens
reasoning
seed
temperature
tool_choice
tools
top_p
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