Sonar Deep Research is Perplexity's most thorough model. It conducts exhaustive multi-step web searches and generates comprehensive, well-cited research reports.

Best for: In-depth research, comprehensive analysis, literature reviews, market research reports.

Model: sonar-deep-research

Note: Deep research requests may take significantly longer to complete (up to several minutes) due to the exhaustive multi-step search process.

Example

curl -X POST "https://api.aisa.one/apis/v1/perplexity/sonar-deep-research" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "sonar-deep-research",
    "messages": [
      {"role": "user", "content": "Write a comprehensive analysis of the global semiconductor supply chain risks in 2026"}
    ]
  }'

Response

The response follows the OpenAI chat completion format, with additional citations and search_results fields. Deep research responses are typically much longer and more detailed than other models.