# Sumsub vs iDenfy: which do AI models recommend for identity verification, October 2026

IT AI Recommendation Index, October 2026 Edition, Identity verification. Three of fourteen models named Sumsub first on the direct prompt; zero named iDenfy. Page: https://it-ai-index.com/identity/identity-verification/sumsub-vs-idenfy/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Sumsub | 17% | #3 of 10 | 15% | 40 | 14 of 14 |
| iDenfy | 8% | #4 of 10 | 0% | 26 | 13 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: sumsub first (first choices: Persona, Sumsub) (alternatives: Trulioo)
- Kimi K2: sumsub first (first choices: Persona, Sumsub) (alternatives: iDenfy)
- GLM 4.7 FlashX: sumsub first (first choices: Persona, Sumsub) (alternatives: Trulioo, Veriff)
- Claude Haiku 4.5: neither first, one named (first choices: Trulioo) (alternatives: Ondato, Sumsub, iDenfy)
- GPT-5.4 mini: neither first, one named (first choices: Persona) (alternatives: Jumio, Sumsub, Trulioo)
- Gemini 3.5 Flash: neither first, one named (first choices: Persona) (alternatives: Middesk, Sumsub, iDenfy)
- Perplexity Sonar: neither first, one named (first choices: Trulioo) (alternatives: Jumio, Sumsub, Veriff, iDenfy)
- DeepSeek V4 Flash: neither first, one named (first choices: Persona) (alternatives: Middesk, Sumsub, Trulioo)
- Llama 4 Maverick: neither first, one named (first choices: Veriff) (alternatives: Trustpair, iDenfy)
- Mistral Small: neither named (first choices: 1Kosmos, Trulioo) (alternatives: Middesk, Veriff)
- Qwen 3.7 Flash: neither named (first choices: Middesk, Veriff) (alternatives: IDology, Jumio, Onfido, Shufti Pro)
- MiniMax M2.5: neither named (first choices: GBG, Veriff) (alternatives: Trustpair)
- GPT-6 Luna: neither named (first choices: Middesk, Persona) (alternatives: Alloy)
- Muse Glimmer 30B: neither named

## What the models said about Sumsub

- "Be most cautious about: IDScan.net, IDmerit, and Sumsub due to confirmed major data breaches." (DeepSeek V4 Flash, negative prompt, hard negative)
- "2024 breach through third-party vendor went undetected for 18 months" (MiniMax M2.5, negative prompt, hard negative)
- "a July 2024 intrusion through a third-party support ticketing platform went undetected until a January 2026 review" (Muse Glimmer 30B, negative prompt, soft negative)
- "I would recommend Sumsub if you want a balanced, enterprise-ready KYC document + selfie verification tool" (Perplexity Sonar, paraphrase prompt, first choice)
- "Sumsub — Best All-in-One Value ... Start with Sumsub if you need KYB (business verification) + KYC together" (Kimi K2, paraphrase prompt, first choice)
- "The Best All-in-One Solution (KYC + KYB): Sumsub ... highly recommended for mid-market B2B companies" (Gemini 3.5 Flash, paraphrase prompt, first choice)

## What the models said about iDenfy

- "I'd recommend iDenfy or Sumsub as top KYC document and selfie verification tools, with iDenfy edging out for its budget-friendly pricing" (Grok 4.1 Fast, paraphrase prompt, first choice)
- "the best practical choice is usually iDenfy because it is specifically described as well-suited for small businesses" (Perplexity Sonar, budget prompt, first choice)
- "For the tightest budget, I'd recommend starting with iDenfy or Veriff Essential" (MiniMax M2.5, budget prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.