Best AI Research Assistants in 2026

Updated 10 October 2026

28ranked

0free plans on this page

10 Oct 2026last checked

0 of 1 with known pricing have a free tier;0 apps show full bars: free, open, on most devices and documented.

#	App	Signal	Free tier	Devices	Score
26	Iris.aiWeb · Self-hosted · API	One bar		1 of 6	5.3
27	PrimerWeb	One bar		1 of 6	5.3
28	ArclyneWindows	One bar	No	1 of 6	4.9

Compare all 3 in a table

#	App	Score	Free plan	Source citations	Deep research mode
26	Iris.ai	5.3	Yes
27	Primer	5.3		Yes	Yes
28	Arclyne	4.9	No	Yes

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