LiteLLMModels

Nemotron 3 Ultra 550B A55B API Pricing

As of October 10, 2026, Nemotron 3 Ultra 550B A55B costs $0.25 per 1M input tokens and $2.50 per 1M output tokens from Perplexity, the lowest of 3 providers, with cache reads at $0.25 per 1M tokens. It has a 1,048,576-token context window and returns up to 1,048,576 tokens per response.

By NVIDIAModel ID perplexity/perplexity/nemotron-3-ultra-550b-a55bPrices updated Checked
Input
$0.25 / 1M tokens
Output
$2.50 / 1M tokens
Cache read
$0.25 / 1M tokens
Context window
1,048,576 tokens
Max output
1,048,576 tokens
Providers
3
Added to LiteLLM
August 25, 2026

Nemotron 3 Ultra 550B A55B pricing by provider

3 listings across 3 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

ProviderModel name in LiteLLMInputOutputCache readContext
Perplexityperplexity/perplexity/nemotron-3-ultra-550b-a55b$0.25$2.50$0.25–
Nebius AI Studionebius/nvidia/Nemotron-3-Ultra-550b-a55b$1.00$3.00–1M
Together AItogether_ai/nvidia/nemotron-3-ultra-550b-a55b$0.60$3.60$0.20512K

What Nemotron 3 Ultra 550B A55B costs in practice

1,000 requests with 2,000 input and 500 output tokens each

Perplexity$1.75
Together AI$3.00
Nebius AI Studio$3.50

100 long-document requests with 100,000 input and 2,000 output tokens each

Perplexity$3.00
Together AI$6.72
Nebius AI Studio$10.60

Nemotron 3 Ultra 550B A55B features

Use Nemotron 3 Ultra 550B A55B with LiteLLM

Call Nemotron 3 Ultra 550B A55B through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/responses. LiteLLM tracks the cost of every request at these prices.

Python SDK
from litellm import completion

response = completion(
    model="perplexity/perplexity/nemotron-3-ultra-550b-a55b",
    messages=[{"role": "user", "content": "Hello!"}],
)
Proxy config.yaml
model_list:
  - model_name: nemotron-3-ultra-550b-a55b
    litellm_params:
      model: perplexity/perplexity/nemotron-3-ultra-550b-a55b
      api_key: os.environ/PERPLEXITYAI_API_KEY
Call the proxy
curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "nemotron-3-ultra-550b-a55b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Nemotron 3 Ultra 550B A55B FAQ

How much does Nemotron 3 Ultra 550B A55B cost?

Nemotron 3 Ultra 550B A55B costs $0.25 per 1M input tokens and $2.50 per 1M output tokens from Perplexity, the lowest of 3 providers, with cache reads at $0.25 per 1M tokens.

What is the context window of Nemotron 3 Ultra 550B A55B?

Nemotron 3 Ultra 550B A55B has a 1,048,576-token context window and returns up to 1,048,576 tokens per response.

Which providers offer Nemotron 3 Ultra 550B A55B?

Nemotron 3 Ultra 550B A55B is available from 3 providers through LiteLLM: Perplexity, Nebius AI Studio and Together AI. The lowest price is on Perplexity.

How do I call Nemotron 3 Ultra 550B A55B with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="perplexity/perplexity/nemotron-3-ultra-550b-a55b", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/responses from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does Nemotron 3 Ultra 550B A55B support?

Nemotron 3 Ultra 550B A55B supports function calling, reasoning and web search.

When did LiteLLM add Nemotron 3 Ultra 550B A55B?

Nemotron 3 Ultra 550B A55B was added to LiteLLM's model price file on August 25, 2026.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: Perplexity, Nebius AI Studio, Together AI.

Provider pages: Perplexity, Nebius AI Studio, Together AI.