LiteLLM Perplexity Provider

LiteLLM integration for Perplexity API providing a unified interface to call Perplexity Sonar models alongside 100+ other LLM providers with consistent API format, fallback routing, and cost tracking.

Overview

LiteLLM provides a unified Python/TypeScript interface to call Perplexity alongside 100+ other LLM providers. Use the same code to call Perplexity, OpenAI, Anthropic, and more with automatic fallback and load balancing.

Supported Models

• perplexity/sonar
• perplexity/sonar-pro
• perplexity/sonar-reasoning-pro
• perplexity/sonar-deep-research

Key Features

• Unified API across all providers
• Automatic fallback chains (e.g., Perplexity -> OpenAI -> Anthropic)
• Load balancing across models
• Cost tracking and budgeting
• Token usage monitoring
• OpenAI-compatible API format
• Streaming support

Usage

from litellm import completion

response = completion(
    model="perplexity/sonar-pro",
    messages=[{"role": "user", "content": "What's new in AI today?"}]
)
print(response.choices[0].message.content)

Configuration

Set PERPLEXITY_API_KEY environment variable. LiteLLM automatically routes requests to Perplexity's API endpoint.

Proxy Server

LiteLLM can run as a proxy server, exposing a unified OpenAI-compatible endpoint that routes to Perplexity and other providers based on model name.