# B2B payment acceptance for enterprise buyers: what AI models recommend, October 2026

Finance AI Recommendation Index, October 2026 Edition. Asked as "B2B payment acceptance platform" and as "accounts receivable payment portal", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Page: https://finance-ai-index.com/receivables/b2b-payment-acceptance/enterprise/

**Standing:** HighRadius leads with 25% of first choices; verdict contested. 51 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | HighRadius | 25% | 0% | 42 |
| 2 | Adyen | 24% | 3% | 35 |
| 3 | Billtrust | 16% | 0% | 23 |
| 4 | Stripe | 12% | 21% | 43 |
| 5 | Tipalti | 4% | 8% | 26 |
| 6 | TreviPay | 2% | 0% | 11 |
| 7 | Worldpay | 2% | 8% | 13 |
| 8 | BILL Accounts Receivable | 2% | 32% | 34 |
| 9 | Versapay | 0% | 12% | 16 |
| 10 | Coupa Pay | 0% | 0% | 13 |
| 11 | Airwallex | 0% | 0% | 12 |
| 12 | PayPal | 0% | 71% | 14 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Adyen; alternatives Billtrust, HighRadius, Serrala FS2 Payments, Stripe
- GPT-5.4 mini: Stripe, TreviPay; alternatives Adyen, BILL AP/AR, Checkout.com
- Gemini 3.5 Flash: Adyen; alternatives Billtrust, HighRadius, Resolve Pay, Stripe
- Perplexity Sonar: Adyen; alternatives HighRadius, Stripe, Worldpay
- Grok 4.1 Fast: Adyen, Stripe; alternatives Checkout.com
- Mistral Small: Worldpay; alternatives Adyen, Checkout.com, HighRadius
- DeepSeek V4 Flash: Adyen; alternatives HighRadius, Stripe
- Llama 4 Maverick: Adyen; alternatives HighRadius, Nickel
- Qwen 3.7 Flash: Adyen; alternatives BILL Accounts Receivable, HighRadius, Stripe
- Kimi K2: HighRadius; alternatives Adyen, Stripe
- GLM 4.7 FlashX: HighRadius; alternatives Adyen, Billtrust, Stripe
- MiniMax M2.5: Adyen; alternatives Payoneer, Worldpay
- GPT-6 Luna: Billtrust; alternatives Adyen, Paystand, Stripe, Versapay
- Muse Glimmer 30B: Adyen; alternatives HighRadius, NMI, Paysafe, Stripe

## Sources the answers cite

79 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- highradius.com: 54 answers, 90 citations
- connectpay.com: 32 answers, 34 citations
- resolvepay.com: 22 answers, 33 citations
- stripe.com: 20 answers, 32 citations
- techrepublic.com: 20 answers, 21 citations
- serrala.com: 19 answers, 21 citations
- learn.g2.com: 19 answers, 20 citations
- emergenresearch.com: 17 answers, 17 citations

Pages named in the most answers:

- https://highradius.com/resources/Blog/best-b2b-payment-platforms (42 answers)
- https://connectpay.com/blog/b2b-payment-platforms (30 answers)
- https://techrepublic.com/article/best-b2b-payment-processors (20 answers)
- https://serrala.com/blog/which-b2b-payment-solutions-are-available-for-enterprises (17 answers)
- https://triple-a.io/blog/best-b2b-payment-solutions (17 answers)
- https://emergenresearch.com/blog/top-10-companies-by-competitive-position-in-the-global-b2b-payment-market (16 answers)
- https://resolvepay.com/blog/best-b2b-payment-processing-software (14 answers)
- https://b2bnn.com/2026/04/b2b-payment-processing-2 (14 answers)
- https://wise.com/us/blog/b2b-payments-companies (13 answers)
- https://gartner.com/reviews/market/b2b-payments-software (11 answers)

## Warned against

- PayPal: 10 of 14 labels negative. "Consumer-First or B2C-Optimized Digital Wallets (e.g., PayPal, Venmo, Zelle) ... Why to avoid: ... structurally mismatched for enterprise B2B workflows." (Gemini 3.5 Flash, negative prompt)
- BILL Accounts Receivable: 11 of 34 labels negative. "Avoid per-user subscription models such as BILL and standard Stripe for payment acceptance at thousands-of-users scale" (Muse Glimmer 30B, budget prompt)
- Stripe: 9 of 43 labels negative. "Avoid platforms like BILL or standard Stripe that charge per-user fees" (Muse Glimmer 30B, budget prompt)
- Melio: 3 of 3 labels negative. "it is generally not recommended for large enterprises" (GLM 4.7 FlashX, negative prompt)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat.
Same leader: HighRadius at 29%.

- Airwallex: 2% to 0%, −2. Inside the floor by 8 points · rank 7 → 13 of 89.
- TreviPay: 0% to 2%, +2. Inside the floor by 8 points · rank 14 → 7 of 89.
- BILL Accounts Receivable: 0% to 2%, +2. Inside the floor by 8 points · rank 87 → 9 of 89.
- Tipalti: 2% to 4%, +2. Inside the floor by 8 points · rank 8 → 6 of 89.
- Stripe: 9% to 11%, +2. Inside the floor by 8 points · rank 4 of 89, unchanged.
- Adyen: 23% to 24%, +1. Inside the floor by 9 points · rank 2 of 89, unchanged.
- HighRadius: 28% to 29%, +1. Inside the floor by 9 points · rank 1 of 89, unchanged.
- Billtrust: 14% to 13%, −1. Inside the floor by 9 points · rank 3 of 89, unchanged.
- Worldpay: 2% to 2%, ±0. Inside the floor by 10 points · rank 6 → 8 of 89.
- Coupa Pay: 0% to 0%, ±0. Inside the floor by 10 points · rank 32 → 12 of 89.
- Versapay: 0% to 0%, ±0. Inside the floor by 10 points · rank 13 → 14 of 89.
- PayPal: 0% to 0%, ±0. Inside the floor by 10 points · rank 86 → 89 of 89.

## Record

- Method: https://finance-ai-index.com/methodology/
- Raw judge labels and full responses: https://finance-ai-index.com/data/
- License: CC BY 4.0. Cite as Finance AI Recommendation Index, October 2026 Edition, finance-ai-index.com.