# Wave vs Xero: which do AI models recommend for invoicing software, October 2026

Finance AI Recommendation Index, October 2026 Edition, Invoicing software. Zero of fourteen models named Wave first on the direct prompt; zero named Xero. Page: https://finance-ai-index.com/receivables/invoicing-software/wave-vs-xero/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Wave | 14% | #4 of 12 | 27% | 37 | 14 of 14 |
| Xero | 2% | #7 of 12 | 6% | 34 | 14 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: neither first, one named (first choices: NetSuite SuiteBilling) (alternatives: BILL, Billtrust, QuickBooks, Xero)
- DeepSeek V4 Flash: neither first, one named (first choices: NetSuite SuiteBilling) (alternatives: BILL, Sage Intacct, Versapay, Xero)
- GLM 4.7 FlashX: neither first, one named (first choices: Invoiced) (alternatives: BILL, FreshBooks, QuickBooks, Xero)
- Claude Haiku 4.5: neither named (first choices: BILL) (alternatives: QuickBooks, Rillion, Sage Intacct)
- GPT-5.4 mini: neither named (first choices: BILL, Billtrust) (alternatives: NetSuite SuiteBilling)
- Gemini 3.5 Flash: neither named (first choices: Versapay) (alternatives: Billtrust, Chargebee, Quadient AR, Stripe Billing, Upflow)
- Perplexity Sonar: neither named (first choices: NetSuite SuiteBilling) (alternatives: Billtrust, Invoiced)
- Mistral Small: neither named (first choices: BILL, Invoiced) (alternatives: QuickBooks, Zoho Invoice)
- Llama 4 Maverick: neither named (first choices: NetSuite SuiteBilling) (alternatives: Billtrust, Invoiced)
- Qwen 3.7 Flash: neither named (first choices: Billtrust, Invoiced) (alternatives: Avalara, ChargeOver, NetSuite SuiteBilling)
- Kimi K2: neither named (first choices: BILL) (alternatives: Chargebee, Invoiced, NetSuite SuiteBilling, Sage Intacct)
- MiniMax M2.5: neither named (first choices: BILL, HighRadius) (alternatives: Billtrust, Invoiced)
- GPT-6 Luna: neither named (first choices: Ordway) (alternatives: BILL, Centime, Stripe Billing)
- Muse Glimmer 30B: neither named (first choices: Invoiced) (alternatives: BILL, NetSuite SuiteBilling, SAP, Versapay)

## What the models said about Wave

- "Use with Extreme Caution: Wave (only for small, low-risk transactions; avoid for high-volume/high-value needs)" (Qwen 3.7 Flash, negative prompt, hard negative)
- "Payment holds \u2013 funds can be frozen with extensive documentation demands" (Kimi K2, negative prompt, hard negative)

## What the models said about Xero

- "BigTime notes that Xero can be rigid for invoicing and billing workflows, with recurring billing and reminders often needing extra setup" (Perplexity Sonar, negative prompt, soft negative)

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.