---
id: "perplexity/sonar-deep-research"
also: ["perplexity/sonar-deep-research"]
card_usd_per_m: "2.0 in, 8.0 out, at perplexity"
cheapest_list_usd_per_m: "2.0 in, 8.0 out, at perplexity on openrouter"
cheapest_effective_usd_per_m: "2.0 in, 61.4645 out, at perplexity on openrouter"
context: 128000
max_output: 115200
input: ["text"]
output: ["text"]
released: "2025-03-07"
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["frequency_penalty", "include_reasoning", "max_tokens", "presence_penalty", "reasoning", "temperature", "top_k", "top_p", "web_search_options"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 0
---
# Perplexity: Sonar Deep Research

Sonar Deep Research is a research-focused model designed for multi-step retrieval, synthesis, and reasoning across complex topics. It autonomously searches, reads, and evaluates sources, refining its approach as it gathers...