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B2B payment acceptance · September 2026 Edition

Billtrust vs Melio

Zero of twelve models named Billtrust first on the direct prompt; zero named Melio. Billtrust was named by nine of the twelve models and Melio by eleven and Billtrust carries 13 labels and Melio 18, so the shares are not directly comparable.

Billtrust

accepted challenger

Named in seven categories this edition.

Melio

accepted challenger

Named in six categories this edition.

First-choice share9%9%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate0%22%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#4#5A position in a field of 13; printed, not drawn.

Labels1318A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, Billtrust reading right to left. Rank and label count are printed, not drawn.EBizCharge was named alongside these two in ten of the twelve direct answers. Helcim vs Billtrust · Helcim vs Melio · Versapay vs Billtrust

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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 B2B payment acceptance page.

By framing

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

BilltrustFirst choices, of twelve modelsMelio

Direct001 against Melio

Paraphrase40

Comparative00

Budget-constrained03

Scale-constrained01

Negative003 against Melio

Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Billtrust and Melio 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

Billtrust

Melio

first choice

named as an alternative

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

The direct prompt

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

Neither was the first choice, one was named

1 of 12 modelsThe answer put something else first and named one of the two as an alternative.

Grok 4.1 FastStripe alternatives: Billtrust, EBizCharge, HighRadius, Versapay

Neither was named

11 of 12 modelsThe answer made no first choice from these two in this category.

Claude Haiku 4.5no first choice alternatives: AvidXchange, BILL, MineralTree, Tipalti, Versapay

GPT-5.4 miniEBizCharge alternatives: Adyen, Checkout.com, Paymode

Gemini 3.5 FlashEBizCharge alternatives: Paystand, Resolve Pay, Versapay

Perplexity SonarEBizCharge alternatives: HighRadius, Paystand, Worldpay

Mistral SmallEBizCharge alternatives: Helcim, HighRadius, Plooto

DeepSeek V4 FlashHighRadius, Versapay alternatives: Helcim, Paystand, Stripe, Tipalti

Llama 4 MaverickHighRadius alternatives: EBizCharge, Worldpay

Qwen 3.7 FlashVersapay alternatives: EBizCharge, Paystand

Kimi K2BILL, EBizCharge alternatives: Paystand, Stripe

GLM 4.7 FlashXEBizCharge alternatives: Plooto, Stripe, Worldpay

MiniMax M2.5EBizCharge, Helcim alternatives: Adyen, Plooto, Stripe, Tipalti

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

Melio leads by fourteen points.

Melio#2 of 10

Billtrust#– of 10

The full small business standing →

Mid-marketThe figures above

Level: the same share of first choices.

Billtrust#4 of 13

Melio#5 of 13

The full mid-market standing →

Enterprise

The order flips: Billtrust leads at enterprise.

Billtrust#3 of 10

Melio#– of 10

The full enterprise standing →

What the models said about Billtrust

No label in this category carried a quote.

What the models said about Melio

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

“Melio has received feedback about payment holds, account suspensions, and slow customer support” Mistral Small · negative prompt · soft negative

“While popular for its free tier and clean interface, operational friction is common” Kimi K2 · negative prompt · soft negative

“Limitations: Less robust ERP integrations compared to BILL” Kimi K2 · direct prompt · soft negative

Also compared

Helcim vs Billtrust Helcim vs Melio Versapay vs Billtrust Versapay vs Melio EBizCharge vs Billtrust EBizCharge vs Melio Billtrust vs Stripe Billtrust vs BILL Billtrust vs HighRadius Melio vs Stripe Melio vs BILL Melio vs HighRadius All twenty-eight head-to-head pages and the full B2B payment acceptance 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.