From the source
Perplexity added the model perplexity/nemotron-3.5-super-120b-a12b to its Agent API, priced at $0.20 per million input tokens, $0.04 per million cached input tokens, and $0.50 per million output tokens.
The model has a 1,048,576-token context window, returns up to 131,072 output tokens, and accepts text input only.
It replaces perplexity/nemotron-3-ultra-550b-a55b, which is no longer listed in the Agent API or Orchestrator API model docs.