# 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.

- Page: https://models.litellm.ai/models/nemotron-3-ultra-550b-a55b
- Lab: NVIDIA
- LiteLLM model name: `perplexity/perplexity/nemotron-3-ultra-550b-a55b`
- Context window: 1,048,576 tokens
- Max output: 1,048,576 tokens
- Added to LiteLLM: August 25, 2026
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Perplexity | `perplexity/perplexity/nemotron-3-ultra-550b-a55b` | $0.25 | $2.50 | $0.25 | – | – | – |
| Nebius AI Studio | `nebius/nvidia/Nemotron-3-Ultra-550b-a55b` | $1.00 | $3.00 | – | – | – | 1M |
| Together AI | `together_ai/nvidia/nemotron-3-ultra-550b-a55b` | $0.60 | $3.60 | $0.20 | – | – | 512K |

## Cost examples

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

## Features

Supported: Function calling, Reasoning, Web search.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="perplexity/perplexity/nemotron-3-ultra-550b-a55b",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## 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.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json