Nemotron 3 Ultra vs Sonar Reasoning Pro: side-by-side summary

Nemotron 3 Ultra and Sonar Reasoning Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Nemotron 3 Ultra, from Nvidia, has a 512,288-token context window and is priced at $0.50/M tokens input, $2.20/M tokens output on OpenRouter.

Sonar Reasoning Pro, from Perplexity, has a 128,000-token context window and is priced at $2/M tokens input, $8/M tokens output on OpenRouter.

Context window

• Nemotron 3 Ultra: 512,288 tokens
• Sonar Reasoning Pro: 128,000 tokens

Price

• Nemotron 3 Ultra: $0.50/M tokens input, $2.20/M tokens output
• Sonar Reasoning Pro: $2/M tokens input, $8/M tokens output

Provided by

• Nemotron 3 Ultra: Nvidia
• Sonar Reasoning Pro: Perplexity

• Nemotron 3 Ultra model details, providers and pricing
• Sonar Reasoning Pro model details, providers and pricing