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Accounts payable automation · October 2026 Edition

BILL Accounts Payable vs Melio

Three of fourteen models named BILL Accounts Payable first on the direct prompt; zero named Melio. Both were named by all fourteen models and BILL Accounts Payable carries 61 labels and Melio 19, so the shares are not directly comparable.

BILL Accounts Payable

accepted challenger

Named in one category this edition.

Melio

accepted challenger

Named in eight categories this edition.

First-choice share20%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate25%5%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#3#6A position in a field of 10; printed, not drawn.

Labels6119A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, BILL Accounts Payable reading right to left. Rank and label count are printed, not drawn.Tipalti was named alongside these two in twelve of the fourteen direct answers. Ramp vs BILL Accounts Payable · Ramp vs Melio · Stampli vs BILL Accounts Payable

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 accounts payable automation page.

By framing

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

BILL Accounts PayableFirst choices, of fourteen modelsMelio

Direct301 against BILL Accounts Payable

Paraphrase70

Comparative20

Budget-constrained235 against BILL Accounts Payable

Scale-constrained001 against BILL Accounts Payable

Negative008 against BILL Accounts Payable · 1 against Melio

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 Accounts Payable and Melio were named in the same answer sixty-one times, of the 162 answers naming BILL Accounts Payable and the 292 naming Melio. In those answers Melio took the first choice eleven times and BILL Accounts Payable fourteen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where BILL Accounts Payable 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
GPT-6 Luna
Muse Glimmer 30B

BILL Accounts Payable

Melio

first choice

named as an alternative

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

The direct prompt

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

BILL Accounts Payable first, Melio not the choice

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

Grok 4.1 FastBILL Accounts Payable, Stampli alternatives: AvidXchange, Ramp, Tipalti

Qwen 3.7 FlashBILL Accounts Payable alternatives: AvidXchange, Spendful, Tipalti, Vasario

Kimi K2BILL Accounts Payable, Stampli alternatives: Quadient AP, Ramp, Tipalti

Neither was the first choice, one was named

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

Perplexity SonarStampli, Tipalti alternatives: AvidXchange, BILL Accounts Payable, Corpay

Mistral SmallMedius, Tipalti alternatives: BILL Accounts Payable, Quadient AP, Softco

GLM 4.7 FlashXHighRadius alternatives: AvidXchange, BILL Accounts Payable, Payhawk, Quadient AP, Ramp, Stampli, Tipalti

MiniMax M2.5Stampli, Tipalti alternatives: BILL Accounts Payable, HighRadius, Ramp, Sage Intacct

GPT-6 LunaStampli alternatives: AvidXchange, BILL Accounts Payable, Ramp, Tipalti

Muse Glimmer 30BAirbase, AvidXchange alternatives: BILL Accounts Payable, Medius, MineralTree, a Global Payments company, Quadient AP, Rillion

Neither was named

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

Claude Haiku 4.5AvidXchange, MineralTree alternatives: Medius, Stampli, Tipalti

GPT-5.4 miniTipalti alternatives: AvidXchange, Basware, Medius

Gemini 3.5 FlashStampli alternatives: AvidXchange, Medius, Ramp, Tipalti

DeepSeek V4 FlashStampli alternatives: Airbase, AvidXchange, Tipalti

Llama 4 Maverickno first choice

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

BILL Accounts Payable leads by twenty-two points.

BILL Accounts Payable#1 of 9

Melio#3 of 9

The full small business standing →

Mid-marketThe figures above

BILL Accounts Payable leads by fifteen points.

BILL Accounts Payable#3 of 10

Melio#6 of 10

The full mid-market standing →

Enterprise

BILL Accounts Payable leads by four points.

BILL Accounts Payable#7 of 11

Melio#– of 11

The full enterprise standing →

What the models said about BILL Accounts Payable

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

“Multiple users complain about Bill.com's practice of holding funds for extended periods — up to a week — before releasing them, which affects cash flow.” Muse Glimmer 30B · negative prompt · hard negative

“Tools with Notable Concerns ... Persistent Bugs | Reuses invoice numbers from archived vendors, causing reconciliation errors” Kimi K2 · negative prompt · hard negative

“BILL AP/AR | Payment issues, sync errors, poor support” Mistral Small · negative prompt · hard negative

“For most mid-sized B2B companies, I'd suggest starting with BILL for its balance of affordability, ease of use, and comprehensive features” Claude Haiku 4.5 · paraphrase prompt · first choice

“For most mid-sized B2B companies, BILL offers the best balance of features, pricing transparency, and scalability.” DeepSeek V4 Flash · paraphrase prompt · first choice

“I'd suggest starting with Bill.com or Tipalti as they balance strong automation with reasonable complexity” MiniMax M2.5 · paraphrase prompt · first choice

What the models said about Melio

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

“Some users report payments debited from their account but never reaching vendors” Kimi K2 · negative prompt · hard negative

Also compared

Ramp vs BILL Accounts Payable Ramp vs Melio Stampli vs BILL Accounts Payable Stampli vs Melio BILL Accounts Payable vs Tipalti BILL Accounts Payable vs AvidXchange BILL Accounts Payable vs Medius BILL Accounts Payable vs Airbase Tipalti vs Melio AvidXchange vs Melio Melio vs Medius Melio vs Airbase All twenty-eight head-to-head pages and the full accounts payable automat 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.