Sonar Deep Research vs GPT-5.5 Pro
Perplexity vs OpenAI — compared on intelligence, speed, and capabilities.
 Sonar Deep Research |  GPT-5.5 Pro | |
|---|---|---|
| Intelligence | 88 | 98 |
| Speed | 78 | 45 |
Sonar Deep ResearchExpert-level research model that autonomously performs dozens of web searches, synthesizes sources, and generates comprehensive reports (typically 2–4 minutes per task).
- ✓ reasoning
- ✓ temperature
- ✓ web search
- ✓ reasoning effort
- ✓ vision
- ✓ documents
- ✓ deep research
GPT-5.5 ProMaximum-performance version of GPT-5.5 using more compute to think harder and provide consistently better answers. The most capable and accurate model in the GPT-5.5 family.
- ✓ reasoning
- ✓ web search
- ✓ reasoning effort
- ✓ vision
- ✓ documents