API
Models
Learn about the models available in the Research API
The Research API offers two advanced agentic researcher models.
Model Capabilities & Recommendations
Both models are fundamentally agentic researchers: they break down your instructions, search the web, extract and reason over facts, and return structured answers with citations.
- exa-research is highly adaptive, adjusting its approach to the difficulty of your request. It is recommended for most use cases.
- exa-ultra provides the highest reasoning capability and excels at the most complex, multi-step research tasks.
Recommendation:
- Use exa-research for most research and Q&A tasks.
- Use exa-ultra for highly complex or nuanced research that requires advanced reasoning.
Latency Benchmarks
The following table summarizes typical completion times for each model. Times are approximate.
Model | p50 Time (seconds) | p90 Time (seconds) |
---|---|---|
exa-research | 20 | 40 |
exa-ultra | 35 | 80 |