Best AI Research Assistants in 2026
Updated
28 AI research assistants ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
28ranked
0free plans on this page
4 Oct 2026last checked
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 26 Rabbit Hole No phone app RecognisedPhone appDocumentedFree plan 5.1 Source citations: YesDeep research mode: YesSource access: web
- 27 Undermind No phone app RecognisedPhone appDocumentedFree plan 5.0
- 28 Arclyne No phone app RecognisedPhone appDocumentedFree plan 4.9 Source citations: YesSource access: web+files+connectors
