---
title: "nemotron-3-ultra-550b-a55b - Model Details & Comparison"
description: "nemotron-3-ultra-550b-a55b from Perplexity: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://www.getmaxim.ai/bifrost/model-library/compare/perplexity/nemotron-3-ultra-550b-a55b"
markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/perplexity/nemotron-3-ultra-550b-a55b.md"
---

# nemotron-3-ultra-550b-a55b - Model Details & Comparison

> nemotron-3-ultra-550b-a55b from Perplexity: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

- [View MCP Gateway](https://www.getmaxim.ai/bifrost/resources/mcp-gateway.md)
- [Features](https://www.getmaxim.ai/bifrost/#features)
- [Enterprise](https://www.getmaxim.ai/enterprise)
- [Pricing](https://www.getmaxim.ai/pricing)
- [Docs](https://docs.getbifrost.ai)
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## About nemotron-3-ultra-550b-a55b

nemotron-3-ultra-550b-a55b is a responses model from Perplexity, one of 42 responses models they offer. It is priced at $0.25 per 1M input tokens and $2.50 per 1M output tokens, ranking 13 out of 115 responses models by cost and cheaper than 89% of models in this category. nemotron-3-ultra-550b-a55b supports function calling, reasoning, web search — one of only 7 responses models with this combination.

## Specifications

- **Perplexity Provider.**
- **Responses Mode.**
- **$0.25 / 1M tokens Input Price.**
- **$2.50 / 1M tokens Output Price.**

## Capabilities

nemotron-3-ultra-550b-a55b supports: Function Calling, Reasoning, Web Search.

## nemotron-3-ultra-550b-a55b Pricing Overview

At $0.25 per 1M input tokens and $2.50 per 1M output tokens, nemotron-3-ultra-550b-a55b ranks 13 out of 115 responses models by input cost. It is more affordable compared to the median of $2.00 for responses models, and is cheaper than 89% of models in this category.

nemotron-3-ultra-550b-a55b is one of 42 Perplexity responses models, one of only 7 responses models combining function calling, reasoning, web search.

## Models to Compare

Alternatives to nemotron-3-ultra-550b-a55b with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| gpt-5.1-codex-mini | OpenAI | $0.25 | $2.00 |
| openai.gpt-5.6-luna | Bedrock Mantle | $0.22 | $1.32 |
| gpt-5.1-codex-mini | Azure | $0.28 | $2.20 |
| gpt-5.1-codex-mini-2025-11-13 | Azure | $0.25 | $2.00 |
| gpt-5.4-pro | Azure | $30.00 | $180.00 |

- [Compare gpt-5.1-codex-mini](https://www.getmaxim.ai/bifrost/model-library/compare/openai/gpt-5.1-codex-mini.md)
- [Compare openai.gpt-5.6-luna](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock_mantle/openai.gpt-5.6-luna.md)
- [Compare gpt-5.1-codex-mini](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.1-codex-mini.md)
- [Compare gpt-5.1-codex-mini-2025-11-13](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.1-codex-mini-2025-11-13.md)
- [Compare gpt-5.4-pro](https://www.getmaxim.ai/bifrost/model-library/compare/azure/gpt-5.4-pro.md)

## Related Resources

- [Calculate nemotron-3-ultra-550b-a55b costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/perplexity/model/nemotron-3-ultra-550b-a55b.md)
- [Check Perplexity status](https://www.getmaxim.ai/bifrost/provider-status/perplexity.md)
- [All Perplexity pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/perplexity.md)

## FAQ

### Is nemotron-3-ultra-550b-a55b cheaper than gpt-5.1-codex-mini?

No. nemotron-3-ultra-550b-a55b costs $0.25 per 1M input tokens while gpt-5.1-codex-mini costs $0.25 per 1M input tokens, making gpt-5.1-codex-mini 0% more affordable for input. However, nemotron-3-ultra-550b-a55b may offer different capabilities or performance characteristics that justify the price difference.

### How does nemotron-3-ultra-550b-a55b pricing compare to the average responses model?

nemotron-3-ultra-550b-a55b input pricing is $0.25 per 1M tokens, which is 87% below the median of $2.00 for responses models. It ranks 13 out of 115 responses models by input cost, making it cheaper than 89% of models in this category. For output, it costs $2.50 per 1M tokens compared to the median of $13.20.

### What makes nemotron-3-ultra-550b-a55b different from other Perplexity models?

Among Perplexity's 42 responses models, nemotron-3-ultra-550b-a55b ranks 8 by input cost. Its combination of function calling, reasoning, web search is shared by only 6 other responses models.

### What are the best alternatives to nemotron-3-ultra-550b-a55b?

The most comparable responses models to nemotron-3-ultra-550b-a55b are: gpt-5.1-codex-mini from OpenAI ($0.25/1M input tokens); openai.gpt-5.6-luna from Bedrock Mantle ($0.22/1M input tokens); gpt-5.1-codex-mini from Azure ($0.28/1M input tokens); gpt-5.1-codex-mini-2025-11-13 from Azure ($0.25/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.

### How do I check if Perplexity is down?

You can monitor Perplexity service health in real time on the Bifrost Perplexity Status page. It tracks current component status, active incidents, and historical reliability data pulled from the official status page every 60 seconds.

### How do I calculate nemotron-3-ultra-550b-a55b costs?

nemotron-3-ultra-550b-a55b is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.25 and generating 1M output tokens costs $2.50.

## Related Resources

- [Perplexity models](https://www.getmaxim.ai/bifrost/model-library/provider/perplexity.md)
- [Model library](https://www.getmaxim.ai/bifrost/model-library.md)
- [LLM cost calculator](https://www.getmaxim.ai/bifrost/llm-cost-calculator.md)
- [Docs: Bifrost docs](https://docs.getbifrost.ai)
- [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost)
- [Pricing: Bifrost pricing](https://www.getmaxim.ai/pricing)
- [Enterprise: Bifrost enterprise](https://www.getmaxim.ai/enterprise)
- [Book a Demo: Bifrost demo](https://www.getmaxim.ai/book-a-demo)
- [Resources: Bifrost resources](https://www.getmaxim.ai/bifrost/resources.md)

---

*This is a markdown version of [https://www.getmaxim.ai/bifrost/model-library/compare/perplexity/nemotron-3-ultra-550b-a55b](https://www.getmaxim.ai/bifrost/model-library/compare/perplexity/nemotron-3-ultra-550b-a55b) for AI/LLM consumption.*