Perplexity AI has introduced the Sonar API, a real-time AI-powered search tool designed to integrate advanced generative search capabilities into applications. This launch positions Perplexity as a direct competitor to industry giants like Google and OpenAI, particularly in the enterprise and developer-focused AI search market.
The New Feature: Sonar API
The Sonar API is available in two tiers:
- Sonar Base: A cost-effective option optimized for speed and basic queries. It supports lightweight integrations and is priced at $5 per 1,000 searches, with additional costs of $1 per 750,000 input or output words.
- Sonar Pro: Designed for complex, multi-step queries, it provides a larger context window (200,000 tokens vs. 127,000 in the base version) and double the citation depth. It costs $3 per 750,000 input words and $15 per 750,000 output words, offering richer, more nuanced results.
Both versions emphasize real-time web connectivity for accurate and authoritative answers, including citations from trusted sources. Developers can customize data sources and adjust parameters like "Top P" and "presence penalty" to tailor outputs to specific needs.
Introducing Sonar: Perplexity’s API.
— Perplexity (@perplexity_ai) January 21, 2025
Sonar is the most affordable search API product on the market. Use it to build generative search, powered by real-time information and citations, into your apps. We’re also offering a Pro version with deeper functionality. pic.twitter.com/CWpVUUKYtW
The Company Behind It
Founded in 2022, Perplexity AI is known for its generative AI search engine that delivers direct answers with citations instead of traditional link-based results. The Sonar API expands Perplexity’s offerings beyond its own platform, enabling integration into third-party applications. This move follows significant funding rounds, including $500 million at a $9 billion valuation.

Key Use Cases and Early Adoption
Several companies have already integrated Sonar into their products:
- Zoom: Uses Sonar Pro in its AI Companion 2.0 to provide real-time answers during video calls without requiring users to leave the interface.
- Copy AI: Implements Sonar for sales research, saving users significant time while increasing productivity.
- Doximity: Leverages Sonar to deliver research-backed answers for healthcare professionals.
These integrations showcase Sonar's practical applications across industries like communication, sales, and healthcare.
Performance and Market Position
Sonar Pro has demonstrated superior performance on benchmarks like SimpleQA, achieving an F-score of 0.858—outperforming competitors such as GPT-4 and Claude. Its affordability (up to seven times cheaper than alternatives) and focus on real-time data make it particularly attractive to compliance-driven industries like healthcare and finance.