shouldiuse.io

Comparison

AI Agent Index vs G2

AI Agent Index and G2 both land on Depends.

G2

g2.com

Depends
Confidence: Medium

Buyers shortlisting B2B software should use G2 free as one input, cross-checked against Capterra or TrustRadius.

Read the full report

AI Agent Index versus G2
CompareAI Agent IndexG2
VerdictDependsDepends
Best forAI safety and policy researchersB2B software buyers shortlisting tools
Who it's not forBuyers wanting reviews, ratings, or pricing before choosing an agentVendors without five-figure budgets
PrivacyNo known public vulnerabilities found in the sources reviewed.¹No public security page found; UpGuard reports no phishing; G2's own DPA references a past data breach.15
Support qualityAcademic project, no support modelTrustpilot and BBB complaints about G2's service
Public sentimentNo independent user reviews surfaced; public discussion is researchers and practitioners citing or amplifying the paper.10Buyers find G2 useful for breadth, but sentiment on G2's own service skews negative on Trustpilot and Redditors weigh it against Capterra and Trustpilot.
Biggest gotchaEasy to confuse with commercial site . different product, different owner.⁹Vendor contracts are negotiated and opaque; budget five figures annually before committing.16

Pick AI Agent Index when

  • AI safety and policy researchers
  • Procurement teams vetting agent vendors
  • Security teams cataloguing agent risks
  • Analysts tracking the agent landscape

When AI Agent Index is not a fit

  • Buyers wanting reviews, ratings, or pricing before choosing an agent
  • Teams expecting a searchable, current tool directory
  • Small teams who just need a quick tool recommendation
  • Anyone needing vendor contact, trials, or support

Pick G2 when

  • B2B software buyers shortlisting tools
  • Teams wanting peer reviews pre-demo
  • SaaS vendors building review-based social proof
  • Marketers using buyer-intent data

When G2 is not a fit

  • Vendors without five-figure budgets
  • Anyone expecting unbiased star ratings
  • Consumer-product shoppers . B2B only
  • Buyers wanting deep technical vetting

Sources

  1. The 2025 AI Agent Index (official site)aiagentindex.mit.edu
    official
  2. The 2025 AI Agent Index (paper)arxiv.org
    official
  3. ACM publicationdl.acm.org
    official
  4. MIT Sloan: Agentic AI, explainedmitsloan.mit.edu
    news
  5. Cambridge: Most AI bots lack basic safety disclosurescam.ac.uk
    security
  6. IETF agent security benchmark (cites the index)ietf.org
    security
  7. Kynver NIST comment citing the indexkynver.com
    security
  8. Mallory.ai: MIT index warns of opaque, unsafe agentsmallory.ai
    security
  9. The AI Agent Index (commercial directory, name lookalike)theaiagentindex.com
    review
  10. Reddit: MIT AI Agent Index Released Todayreddit.com
    review
  11. G2 (company) . Wikipediaen.wikipedia.org
    news
  12. G2 . product siteg2.com
    official
  13. Sell G2 . Planssell.g2.com
    official
  14. Sell G2 . Review Generationsell.g2.com
    official
  15. G2 Data Processing Addendumlegal.g2.com
    official
  16. G2 Software Pricing . Vendrvendr.com
    news