OpenAI
ChatGPT (with Deep Research)
OpenAI's assistant with multi-step reasoning and a deep research mode for compiling sourced reports.
Our editorial assessment as of Jun 4, 2026, based on the public sources listed below.
Rank in Research / Search
#6
Tier
A
Score
82.0
Underlying model
—
Strengths
- Strong reasoning and writing for outlines, drafts, and explanations
- Deep research mode browses and compiles cited reports
- Free access plus affordable Plus tier
Considerations
- Can produce confident but wrong details — verify sources
- Best research tools (deep research) need a paid plan
- Not purpose-built for academic literature like Elicit
Price
Free · Plus ~$20/mo
Score breakdown
Performance
85.0
Reputation
88.0
Price
80.0
Recency
88.0
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
Sources
- Best AI Tools 2026: 12 I Use, 1 You're Missing | Dreams AIAccessed: 2026-06-03
- OSU Library GuideAccessed: 2026-06-03
- LumiveroAccessed: 2026-06-03
- Best AI Tools to Use in 2026 by Category : r/ChatGPTPro - RedditAccessed: 2026-05-26
- 9 Best AI Tools for Research in 2026 (Free & Paid)Accessed: 2026-05-13
- Best AI Tools to Use in 2026 by Category : r/ChatGPTPro - RedditAccessed: 2026-05-13