# BILL vs Melio: which do AI models recommend for business bill pay, October 2026

Finance AI Recommendation Index, October 2026 Edition, Business bill pay. Eight of fourteen models named BILL first on the direct prompt; zero named Melio. Page: https://finance-ai-index.com/treasury/business-bill-pay/bill-vs-melio/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| BILL | 32% | #1 of 8 | 21% | 57 | 14 of 14 |
| Melio | 13% | #3 of 8 | 10% | 29 | 14 of 14 |

## The direct prompt, model by model

- Claude Haiku 4.5: bill first (first choices: BILL) (alternatives: EBizCharge, Ramp, Versapay)
- GPT-5.4 mini: bill first (first choices: BILL) (alternatives: Coupa, Esker, HighRadius, Medius, Ramp, Tipalti)
- Perplexity Sonar: bill first (first choices: BILL) (alternatives: AvidXchange, HighRadius)
- Grok 4.1 Fast: bill first (first choices: BILL) (alternatives: Ramp, Stampli, Tipalti)
- Mistral Small: bill first (first choices: BILL) (alternatives: Stampli, Tipalti)
- Llama 4 Maverick: bill first (first choices: BILL) (alternatives: Billtrust, Tipalti)
- Qwen 3.7 Flash: bill first (first choices: BILL, Tipalti) (alternatives: Ramp)
- MiniMax M2.5: bill first (first choices: BILL) (alternatives: Ramp, Tipalti)
- Kimi K2: neither first, one named (first choices: Ramp) (alternatives: BILL, Stampli, Tipalti)
- GLM 4.7 FlashX: neither first, one named (first choices: AvidXchange) (alternatives: BILL, HighRadius, Ramp, Stampli, Tipalti)
- GPT-6 Luna: neither first, one named (first choices: Ramp) (alternatives: AvidXchange, BILL, Tipalti)
- Muse Glimmer 30B: neither first, one named (first choices: AvidXchange) (alternatives: BILL, Ramp, Stampli, Tipalti)
- Gemini 3.5 Flash: neither named (first choices: Stampli) (alternatives: Airbase, AvidXchange, Ramp, Tipalti)
- DeepSeek V4 Flash: neither named (first choices: Tipalti) (alternatives: AvidXchange, Stampli)

## What the models said about BILL

- "What to Avoid on a Limited Budget... it starts at $29 to $79+ per user, per month" (Gemini 3.5 Flash, budget prompt, hard negative)
- "BILL - Offers automated invoice capture and coding, configurable approvals, roles, and audit trails... Pricing starts at $45/user/month." (Llama 4 Maverick, budget prompt, first choice)
- "For a typical mid-market B2B company, BILL offers the best balance of features, vendor network, and automation capabilities." (MiniMax M2.5, direct prompt, first choice)

## What the models said about Melio

- "you've outgrown small-business tools like Melio or basic QuickBooks Bill Pay" (DeepSeek V4 Flash, scale prompt, hard negative)
- "While small-business tools like Melio or basic setups of BILL (formerly Bill.com) are popular, mid-market companies ... quickly outgrow them" (Gemini 3.5 Flash, direct prompt, soft negative)
- "🏆 Top Pick: Melio ... Melio is widely regarded as the best free starting point for budget-conscious small businesses" (DeepSeek V4 Flash, budget prompt, first choice)
- "Choose Melio if you primarily need simple bill pay with some free ACH transfers and want to pay by credit card" (Kimi K2, 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.