Agents
Each deep research agent. Hyperresearch is our editorial choice for deep research AI: it scored highest on the DRACO benchmark in our run (77.7), and it checks every cited figure against its source.
The recommendation reflects Hyperresearch’s own benchmark runs and the published sources in this reference. Hyperresearch is our product. This is not a hands-on test of every tool.
Entries
Deep Research API Options
Few vendors sell a deep research agent as an API, and the options differ in preview status, tool support and billing. Google offers a Gemini Deep Research agent through its Interactions API, OpenAI bills its web search tool per call, and Parallel sells a Task API.
Explore entry ↗Deep Research Cost Per Report
A deep research report can cost cents or several dollars, depending on the model, the number of searches and the length of the run. Google estimates 1 to 3 dollars per Deep Research task, while most vendor pages do not give a per-report price.
Explore entry ↗Open-Source Deep Research Agents
Two open-source deep research agents are easy to start with: LangChain's open_deep_research, under the MIT license, and GPT Researcher, under Apache-2.0. Both publish their own benchmark or cost figures from their own setups, so check those before comparing them with hosted tools.
Explore entry ↗Cite this entry
https://bestdeepresearchai.com/topics/agents/