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...
nvidia/nemotron-3-ultra-550b-a55bNemotron 3 Ultra is an API model from NVIDIA, released on Jun 4, 2026, with a context window of 262,144 tokens, pricing of $0.6 per million input tokens and $2.4 per million output tokens. It accepts text input and produces text output.
At listed prices, a request with 10,000 input tokens and 1,000 output tokens costs about $0.0084.
Specs are sourced from OpenRouter and were last checked on Nov 3, 2026. Always confirm current pricing and limits with the provider before production use.
Nemotron 3 Ultra supports a context window of 262,144 tokens.
Nemotron 3 Ultra is listed at $0.6 per million input tokens and $2.4 per million output tokens on OpenRouter.
Nemotron 3 Ultra was published on Jun 4, 2026.
Nemotron 3 Ultra accepts text input and produces text output.