# Stax: how AI models rank it, October 2026

Finance AI Recommendation Index, October 2026 Edition. Named in 5 judge labels across 2 categories by 5 of 14 models. Page: https://finance-ai-index.com/vendors/stax/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| B2B payment acceptance | 0% | 49 | 25% | 4 |
| Business bill pay | 0% | 71 | 0% | 1 |

## What the models said for it

- "If you're a high-volume processor wanting to minimize fees → Adyen or Stax (interchange+)." (DeepSeek V4 Flash, B2B payment acceptance)
- "Best for: High-volume B2B businesses." (Mistral Small, B2B payment acceptance)

## And against it

- "Unresponsive customer service, unexpected fees, difficulties canceling services, delayed/withheld funds" (Kimi K2, B2B payment acceptance)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat. A larger change is movement; a smaller one is noise.

- B2B payment acceptance: 0% to 0%, ±0. Inside the floor by 10 points · rank 27 → 49 of 94.
- Business bill pay: 0% to 0%, ±0. New · not ranked in September 2026 · rank 71 of 98.

## In its own words

What Stax's own pages state, read 2026-09-28. Stated by the vendor, not checked by the index.

- Positioning: Stax empowers software platforms, small businesses, and large businesses, through simplified, industry-leading integrated payment and recurring billing solutions. (https://staxpayments.com/)
- For: software platforms, small businesses, and large businesses (https://staxpayments.com/)
- Price stated: Transparent pricing (https://staxpayments.com/)
- Starting price: $99 /month (https://staxpayments.com/pricing)
- Certifications: PCI DSS, SOC2
- Hosting: All US Regions
- Customers named: Sera

## What it publishes

Every page staxpayments.com exposes, read 2026-09-29: 474 addresses. By kind, pages and the last 90 days:

- blog: 362 pages, 40 in the last 90 days, latest 2026-09-23
- case study: 1 pages, 0 in the last 90 days, latest undated
- webinar or virtual event: 1 pages, 0 in the last 90 days, latest 2025-05-07
- conference or event: 1 pages, 0 in the last 90 days, latest 2024-03-24
- report or ebook: 5 pages, 0 in the last 90 days, latest undated
- comparison: 17 pages, 2 in the last 90 days, latest 2026-08-18
- glossary or explainer: 19 pages, 2 in the last 90 days, latest 2026-08-18
- news or press: 1 pages, 0 in the last 90 days, latest 2024-03-23
- Recent: 2026-09-23 blog: Retainer billing software https://staxpayments.com/blog/retainer-billing-software
- Recent: 2026-09-21 blog: B2b payments professional services controller https://staxpayments.com/blog/b2b-payments-professional-services-controller
- Recent: 2026-09-16 blog: Consulting firm payment processing https://staxpayments.com/blog/consulting-firm-payment-processing
- Recent: 2026-09-14 blog: Legal software payment attachment rate saas integration https://staxpayments.com/blog/legal-software-payment-attachment-rate-saas-integration
- Recent: 2026-09-09 blog: Accounting firm payment processing fees https://staxpayments.com/blog/accounting-firm-payment-processing-fees
- Recent: 2026-09-09 blog: How to set up a merchant account https://staxpayments.com/blog/how-to-set-up-a-merchant-account

## 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.