ChatGPT Deep Research
by OpenAI
Multi-step web research that writes a cited report
Reviewed by the the30top research team · Last reviewed 2026-10-27
Overview
OpenAI's deep research does multi-step research on the internet and produces a documented report with citations to specific passages in its sources, and it can also work over files you upload. Runs take roughly 5 to 30 minutes. OpenAI states that it can hallucinate facts, struggle to separate authoritative sources from rumor, and misjudge its own confidence, so every report needs human checking.
Our verdict
A capable general research agent with a free entry point and clear plan tiers. Treat output as a strong first draft that needs verification, not a finished deliverable.
Best for
Analysts and consultants who want a general purpose research agent on a per-user subscription.
Avoid if
You need research grounded in licensed financial or expert-network content.
Pros
- Reports cite specific passages from sources
- Free plan includes limited access
- Handles uploaded files alongside web sources
Cons
- Runs can take up to 30 minutes
- Can hallucinate and misjudge confidence
- Does not reach licensed financial databases
Key capabilities
Frequently asked questions
Which ChatGPT plans include deep research?
The pricing page shows limited access on Free and Go, expanded on Plus at $20 per month, and maximum on Pro from $100 per month.
How long does a deep research run take?
OpenAI says it may take anywhere from 5 to 30 minutes.
Can deep research make mistakes?
Yes. OpenAI says it can hallucinate facts, make incorrect inferences and fail to convey uncertainty well.