Perplexity Sonar API Guide 2026: Add Real-Time Search to Your App
The Perplexity Sonar API lets you add live web search and inline citations to any app using a single OpenAI-compatible endpoint. You get grounded, up-to-date answers with source links — no separate search API, no custom scraping pipeline — starting at $1 per million tokens. What Is the Perplexity Sonar API? The Perplexity Sonar API is a search-first AI inference service that automatically retrieves live web results before generating each response, embedding citations directly into the output. Unlike OpenAI or Anthropic models that ground answers in training data, Sonar queries the live web on every request — making it purpose-built for applications that need current information, not just general reasoning. Pricing starts at $1 per million tokens (input and output combined) for the standard Sonar model, with no extra per-query search fee bundled on top. In a 2026 production benchmark, Sonar delivered inline citations on 94% of test queries with latency consistently under 2 seconds. The API endpoint is fully OpenAI-compatible, meaning any application already calling GPT-4 or Claude can switch to Sonar by changing the base URL and model name — no SDK migration required. This drop-in compatibility, combined with a search-first architecture, is what separates Sonar from general-purpose models with optional grounding add-ons. ...