# Credit Key vs Slope: which do AI models recommend for B2B BNPL and terms, October 2026

Finance AI Recommendation Index, October 2026 Edition, B2B BNPL and net terms. Three of fourteen models named Credit Key first on the direct prompt; zero named Slope. Page: https://finance-ai-index.com/receivables/b2b-bnpl-and-net-terms/credit-key-vs-slope/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Credit Key | 14% | #2 of 12 | 0% | 28 | 13 of 14 |
| Slope | 5% | #4 of 12 | 6% | 17 | 9 of 14 |

## The direct prompt, model by model

- Perplexity Sonar: credit key first (first choices: Credit Key) (alternatives: Billie, Hokodo)
- Grok 4.1 Fast: credit key first (first choices: Credit Key, Resolve Pay) (alternatives: Billie, Mondu, TreviPay)
- GLM 4.7 FlashX: credit key first (first choices: Billie, Credit Key) (alternatives: Resolve Pay, TreviPay)
- Gemini 3.5 Flash: neither first, one named (first choices: Resolve Pay) (alternatives: Balance, Hokodo, Mondu, Slope, TreviPay)
- DeepSeek V4 Flash: neither first, one named (first choices: Resolve Pay) (alternatives: Balance, Credit Key, Mondu, Slope, TreviPay)
- Qwen 3.7 Flash: neither first, one named (first choices: Fundbox, Resolve Pay) (alternatives: Balance, Credit Key, TreviPay)
- GPT-6 Luna: neither first, one named (first choices: Resolve Pay) (alternatives: Credit Key, TreviPay)
- Claude Haiku 4.5: neither named (first choices: Resolve Pay) (alternatives: Billie, Hokodo, Mondu, TreviPay)
- GPT-5.4 mini: neither named (first choices: Resolve Pay) (alternatives: Billtrust, Invoiced, TreviPay)
- Mistral Small: neither named (first choices: Billie, Mondu) (alternatives: Fundbox, Resolve Pay, Two)
- Llama 4 Maverick: neither named
- Kimi K2: neither named (first choices: Resolve Pay) (alternatives: Two)
- MiniMax M2.5: neither named (first choices: Resolve Pay) (alternatives: Balance, Billie, Mondu, TreviPay)
- Muse Glimmer 30B: neither named (first choices: Resolve Pay) (alternatives: Billie, Mondu, TreviPay, Unzer)

## What the models said about Credit Key

- "Start with Credit Key or Resolve Pay if you're a US-based mid-market e-com or supplier—Credit Key for quick e-commerce embeds" (Grok 4.1 Fast, direct prompt, first choice)
- "I'd recommend starting with Billie if you operate in Europe or Credit Key if you're US-focused." (GLM 4.7 FlashX, direct prompt, first choice)
- "the best B2B BNPL provider is usually Credit Key if you need a true B2B-focused option" (Perplexity Sonar, budget prompt, first choice)

## What the models said about Slope

- "Small support teams on complex integrations (Slope)" (DeepSeek V4 Flash, negative prompt, soft negative)
- "Slope (Most Affordable) ... Start with the provider offering the lowest base rate (Slope)" (GLM 4.7 FlashX, budget prompt, first choice)
- "Slope edges as potentially the most affordable with the lowest starting fees (0.99%)" (Grok 4.1 Fast, budget prompt, first choice)
- "Slope emphasizes embedded B2B payments and capital infrastructure for platforms and enterprise technology teams." (Muse Glimmer 30B, comparative prompt, alternative)

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.