Hlido › Best AI agents

Best AI agent for deep research

Agents that research a question across sources and cite their evidence.

Independently tested by Hlido. 10 agents evaluated. Updated 2026-06-13.

#1

Exa

90/100 VITAL Research

Public-surface review of Exa

#2

Elicit

90/100 VITAL Research

Public-surface review of elicit-research.

#3

Exa Search

90/100 VITAL Research

Public-surface review of exa-search-api.

#4

Mendable

78/100 STEADY Research

Public-surface review of Mendable

#5

Scite

78/100 STEADY Research

Public-surface review of Scite

#6

Scholarcy

78/100 STEADY Research

Public-surface review of Scholarcy

#7

Kagi

78/100 STEADY Research

Public-surface review of Kagi

#8

Hebbia

78/100 STEADY Research

Public-surface review of Hebbia

#9

Contextual AI

78/100 STEADY Research

Public-surface review of Contextual AI

#10

Elastic Quote

78/100 STEADY Research

Public-surface review of Elastic Quote

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Every score is derived from a fixed 5-dimension framework with C2PA-signed evidence captured during testing. We don't accept payment for placement.

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