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

Gane Index, November 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://www.gane.ai/index/finance/receivables/b2b-payment-acceptance/enterprise

**Standing:** HighRadius B2B Payments leads with 31% of first choices; verdict contested. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [HighRadius B2B Payments](https://www.gane.ai/index/finance/vendors/highradius-b2b-payments/index.md) | 31% | 0% | 38 |
| 2 | [Adyen](https://www.gane.ai/index/finance/vendors/adyen/index.md) | 17% | 6% | 36 |
| 3 | [Stripe](https://www.gane.ai/index/finance/vendors/stripe/index.md) | 10% | 18% | 38 |
| 5 | [Billtrust](https://www.gane.ai/index/finance/vendors/billtrust/index.md) | 8% | 0% | 27 |
| 8 | [Versapay](https://www.gane.ai/index/finance/vendors/versapay/index.md) | 2% | 0% | 23 |
| 9 | [Tipalti](https://www.gane.ai/index/finance/vendors/tipalti/index.md) | 2% | 4% | 23 |
| 10 | [BILL Accounts Receivable](https://www.gane.ai/index/finance/vendors/bill-accounts-receivable/index.md) | 2% | 29% | 28 |
| 11 | [Helcim](https://www.gane.ai/index/finance/vendors/helcim/index.md) | 2% | 10% | 10 |
| 15 | [PayPal Payments](https://www.gane.ai/index/finance/vendors/paypal-payments/index.md) | 2% | 59% | 17 |
| 16 | [Coupa Pay](https://www.gane.ai/index/finance/vendors/coupa-pay/index.md) | 0% | 0% | 15 |
| 17 | [TreviPay](https://www.gane.ai/index/finance/vendors/trevipay/index.md) | 0% | 0% | 11 |
| 18 | [AvidXchange](https://www.gane.ai/index/finance/vendors/avidxchange/index.md) | 0% | 10% | 10 |

Rank is by share of first choices among all 111 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

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

- Claude Haiku 4.5: BILL Accounts Receivable, Stripe Billing
- GPT-5.4 mini: Stripe; alternatives Adyen, Finix, PayPal Payments, Worldpay
- Gemini 3.5 Flash: Adyen, Stripe; alternatives Billtrust, HighRadius B2B Payments, TreviPay, Versapay
- Perplexity Sonar: Adyen; alternatives Billtrust, Finix, HighRadius B2B Payments, Stripe
- Grok 4.20: Stripe; alternatives Adyen, BILL Accounts Receivable, Coupa Pay, Versapay
- Mistral Small: Serrala
- DeepSeek V4 Flash: Adyen; alternatives HighRadius B2B Payments, Stripe, Versapay, Worldpay
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Adyen; alternatives Checkout.com, Stripe
- Kimi K2: Adyen, Stripe; alternatives HighRadius B2B Payments, Serrala
- GLM 4.7 FlashX: Adyen, HighRadius B2B Payments; alternatives BILL Accounts Receivable, Helcim, Stax, Stripe
- MiniMax M2.5: Adyen, Stripe; alternatives BILL Accounts Receivable
- GPT-6 Luna: Versapay; alternatives Adyen, Billtrust, Stripe
- Muse Glimmer 30B: HighRadius B2B Payments; alternatives Adyen, Billtrust, Paystand, Stripe

## Sources the answers cite

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

- highradius.com: 27 answers, 52 citations
- stripe.com: 25 answers, 41 citations
- sourceforge.net: 21 answers, 26 citations
- g2.com: 21 answers, 25 citations
- techrepublic.com: 21 answers, 23 citations
- emergenresearch.com: 18 answers, 18 citations
- coastalpay.com: 15 answers, 31 citations
- billtrust.com: 15 answers, 24 citations

Pages named in the most answers:

- https://techrepublic.com/article/best-b2b-payment-processors (20 answers)
- https://emergenresearch.com/blog/top-10-companies-by-competitive-position-in-the-global-b2b-payment-market (18 answers)
- https://highradius.com/resources/Blog/best-b2b-payment-platforms (17 answers)
- https://rillion.com/blog/best-b2b-payment-platforms (13 answers)
- https://g2.com/categories/payment-gateways/f/b2b (12 answers)
- https://coastalpay.com/b2b (11 answers)
- https://coastalpay.com/best-b2b-corporate-card-processors-in-2026-stripe-adyen-coastal-pay-more (10 answers)
- https://learn.g2.com/best-accounts-receivable-software (10 answers)
- https://paidnice.com/blog/best-accounts-receivable-software (10 answers)
- https://finix.com/resources/blogs/b2b-payment-processing (9 answers)

## Warned against

- PayPal Payments: 10 of 17 labels negative. "Why cautious/avoid: High fees ... poor customer support ... features geared toward smaller or consumer transactions" (Grok 4.20, negative prompt)
- BILL Accounts Receivable: 8 of 28 labels negative. "Avoid using SMB solutions (Bill.com, Melio, PayPal) for primary enterprise AP/AR" (Gemini 3.5 Flash, negative prompt)
- Stripe: 7 of 38 labels negative. "Avoid: Standard online checkout providers (e.g., basic Stripe, PayPal, Square setups) that position themselves primarily for e-commerce retailers." (Qwen 3.7 Flash, negative prompt)
- Melio: 3 of 7 labels negative. "Avoid using SMB solutions (Bill.com, Melio, PayPal) for primary enterprise AP/AR" (Gemini 3.5 Flash, negative prompt)

## Movement since October 2026

Floor: 10 points of share, measured on the calibration repeat.
Same leader: HighRadius B2B Payments at 31%.

- Billtrust: 16% to 8%, −8. Inside the floor by 2 points · rank 3 → 5 of 111.
- Adyen: 24% to 17%, −7. Inside the floor by 3 points · rank 2 of 111, unchanged.
- HighRadius B2B Payments: 25% to 31%, +6. Inside the floor by 4 points · rank 1 of 111, unchanged.
- Stripe: 12% to 10%, −2. Inside the floor by 8 points · rank 4 → 3 of 111.
- Versapay: 0% to 2%, +2. Inside the floor by 8 points · rank 14 → 8 of 111.
- Tipalti: 4% to 2%, −2. Inside the floor by 8 points · rank 6 → 9 of 111.
- PayPal Payments: 0% to 2%, +2. Inside the floor by 8 points · rank 103 → 15 of 111.
- TreviPay: 2% to 0%, −2. Inside the floor by 8 points · rank 7 → 17 of 111.
- Worldpay: 2% to 0%, −2. Inside the floor by 8 points · rank 8 → 20 of 111.
- BILL Accounts Receivable: 2% to 2%, ±0. Inside the floor by 10 points · rank 9 → 10 of 111.
- Helcim: 2% to 2%, ±0. Inside the floor by 10 points · rank 11 of 111, unchanged.
- Coupa Pay: 0% to 0%, ±0. Inside the floor by 10 points · rank 15 → 16 of 111.

## Record

- Method: https://www.gane.ai/index/finance/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/finance.