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Invoicing software · October 2026 Edition

BILL vs Xero

Five of fourteen models named BILL first on the direct prompt; zero named Xero. BILL was named by thirteen of the fourteen models and Xero by fourteen and BILL carries 25 labels and Xero 34, so the shares are not directly comparable.

BILL

accepted challenger

Named in fifteen categories this edition.

Xero

accepted challenger

Named in twenty-one categories this edition.

First-choice share16%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate4%6%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#2#7A position in a field of 12; printed, not drawn.

Labels2534A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, BILL reading right to left. Rank and label count are printed, not drawn.NetSuite SuiteBilling was named alongside these two in eight of the fourteen direct answers. Zoho Invoice vs BILL · Zoho Invoice vs Xero · BILL vs QuickBooks

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; every quote names the model and the prompt it came from. Both figures come from the invoicing software page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.

BILLFirst choices, of fourteen modelsXero

Direct501 against Xero

Paraphrase31

Comparative011 against BILL

Budget-constrained00

Scale-constrained00

Negative001 against Xero

Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, BILL and Xero were named in the same answer seventy-four times, of the 477 answers naming BILL and the 795 naming Xero. In those answers Xero took the first choice twelve times and BILL seven.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where BILL and Xero stood in it.

Model	Direct	Paraphrase	Comparative	Budget-constrained	Scale-constrained	Negative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B

BILL

Xero

first choice

named as an alternative

argued againstblank: not namedEach cell is one answer, BILL on the left and Xero on the right.

The direct prompt

The plain question, one answer per model, grouped by where BILL and Xero stood in it.

BILL first, Xero not the choice

5 of 14 modelsXero was named in the answer but not as the choice, or not at all.

Claude Haiku 4.5BILL alternatives: QuickBooks, Rillion, Sage Intacct

GPT-5.4 miniBILL, Billtrust alternatives: NetSuite SuiteBilling

Mistral SmallBILL, Invoiced alternatives: QuickBooks, Zoho Invoice

Kimi K2BILL alternatives: Chargebee, Invoiced, NetSuite SuiteBilling, Sage Intacct

MiniMax M2.5BILL, HighRadius alternatives: Billtrust, Invoiced

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.

Grok 4.1 FastNetSuite SuiteBilling alternatives: BILL, Billtrust, QuickBooks, Xero

DeepSeek V4 FlashNetSuite SuiteBilling alternatives: BILL, Sage Intacct, Versapay, Xero

GLM 4.7 FlashXInvoiced alternatives: BILL, FreshBooks, QuickBooks, Xero

GPT-6 LunaOrdway alternatives: BILL, Centime, Stripe Billing

Muse Glimmer 30BInvoiced alternatives: BILL, NetSuite SuiteBilling, SAP, Versapay

Neither was named

4 of 14 modelsThe answer made no first choice from these two in this category.

Gemini 3.5 FlashVersapay alternatives: Billtrust, Chargebee, Quadient AR, Stripe Billing, Upflow

Perplexity SonarNetSuite SuiteBilling alternatives: Billtrust, Invoiced

Llama 4 MaverickNetSuite SuiteBilling alternatives: Billtrust, Invoiced

Qwen 3.7 FlashBilltrust, Invoiced alternatives: Avalara, ChargeOver, NetSuite SuiteBilling

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.

Small business

Xero leads by eighteen points.

Xero#3 of 8

BILL#– of 8

The full small business standing →

Mid-marketThe figures above

The order flips: BILL leads at mid-market.

BILL#2 of 12

Xero#7 of 12

The full mid-market standing →

Enterprise

The order flips: Xero leads at enterprise.

Xero#6 of 16

BILL#10 of 16

The full enterprise standing →

What the models said about BILL

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“BILL and Invoiced are the top recommendations due to their advanced automation, AI capabilities, and scalability.” Mistral Small · direct prompt · first choice

What the models said about Xero

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“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

Also compared

Zoho Invoice vs BILL Zoho Invoice vs Xero BILL vs QuickBooks BILL vs Wave BILL vs Invoiced BILL vs NetSuite SuiteBilling QuickBooks vs Xero Wave vs Xero Invoiced vs Xero NetSuite SuiteBilling vs Xero All twenty-one head-to-head pages and the full invoicing software standing

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.