Perplexity AI

Perplexity AI provides search-augmented LLMs with an OpenAI-compatible API.

Install

pip install synapsekit[openai]

Perplexity AI uses the OpenAI-compatible API, so it requires the openai package.

Usage

from synapsekit import LLMConfig
from synapsekit.llm.perplexity import PerplexityLLM

llm = PerplexityLLM(LLMConfig(
    model="sonar-pro",
    api_key="pplx-...",
))

async for token in llm.stream("What is RAG?"):
    print(token, end="", flush=True)

Available models

Model	ID
Sonar	sonar
Sonar Pro	sonar-pro
Sonar Reasoning	sonar-reasoning
Sonar Reasoning Pro	sonar-reasoning-pro

See the full list at docs.perplexity.ai.

Function calling

result = await llm.call_with_tools(messages, tools)

Custom base URL

llm = PerplexityLLM(config, base_url="http://localhost:8000/v1")

Parameters

Parameter	Description
model	Perplexity model ID
api_key	Your Perplexity API key
base_url	Custom API base URL (default: https://api.perplexity.ai)