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Index › Finance › Spend and procurement › Accounts payable automat › Stampli vs Melio
Accounts payable automation · November 2026 Edition

Stampli vs Melio

Five of fourteen models named Stampli first on the direct prompt; zero named Melio. Stampli was named by fourteen of the fourteen models and Melio by thirteen and Stampli carries 43 labels and Melio 24, so the shares are not directly comparable.

Stampli

accepted challenger

Named in seven categories this edition.

Melio

accepted challenger

Named in nine categories this edition.

First-choice share23%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate2%4%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#2#6A position in a field of 14; printed, not drawn.
Labels4324A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Stampli reading right to left. Rank and label count are printed, not drawn.Tipalti was named alongside these two in fourteen of the fourteen direct answers. BILL Accounts Payable vs Stampli · BILL Accounts Payable vs Melio · Stampli vs Ramp

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.
StampliFirst choices, of fourteen modelsMelio
Direct501 against Melio
Paraphrase50
Comparative20
Budget-constrained02
Scale-constrained00
Negative101 against Stampli
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 November 2026 Edition, Stampli and Melio were named in the same answer sixty-two times, of the 206 answers naming Stampli and the 308 naming Melio. In those answers Melio took the first choice fifteen times and Stampli three.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Stampli and Melio stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.20
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
Stampli Melio first choice named as an alternative argued againstblank: not namedEach cell is one answer, Stampli on the left and Melio on the right.

The direct prompt

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

Stampli first, Melio not the choice

5 of 14 modelsMelio was named in the answer but not as the choice, or not at all.
GPT-5.4 miniStampli alternatives: BILL Accounts Payable, Ramp, Sage Intacct, Tipalti
Gemini 3.5 FlashStampli alternatives: Airbase, AvidXchange, Medius, Ramp, Tipalti
DeepSeek V4 FlashStampli alternatives: AvidXchange, BILL Accounts Payable, Tipalti
Kimi K2Stampli alternatives: AvidXchange, BILL Accounts Payable, MineralTree TotalAP, Tipalti
GPT-6 LunaStampli alternatives: AvidXchange, BILL Accounts Payable, Tipalti

Neither was the first choice, one was named

7 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Perplexity SonarBILL Accounts Payable alternatives: Payhawk, Ramp, Stampli, Tipalti
Grok 4.20BILL Accounts Payable alternatives: AvidXchange, Melio, Stampli, Tipalti
Mistral SmallBILL Accounts Payable alternatives: AvidXchange, Payhawk, Stampli, Tipalti
Llama 4 MaverickAvidXchange alternatives: Basware, Stampli, Tipalti
GLM 4.7 FlashXBILL Accounts Payable alternatives: AvidXchange, Coupa, Medius, Procurify, Quadient AP, Ramp, SAP Concur, Sage Intacct, Stampli, Tipalti
MiniMax M2.5BILL Accounts Payable alternatives: Coupa, Procurify, Stampli, Tipalti
Muse Glimmer 30BBILL Accounts Payable alternatives: AvidXchange, Stampli, Tipalti

Neither was named

2 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Rillion alternatives: AvidXchange, Medius, Quadient AP, Tipalti
Qwen 3.7 FlashBILL Accounts Payable alternatives: BlackLine, Coupa, Ramp, 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 twenty points.
Melio20%#2 of 7
Stampli0%#5 of 7
The full small business standing →
Mid-marketThe figures above
The order flips: Stampli leads at mid-market.
Stampli23%#2 of 14
Melio5%#6 of 14
The full mid-market standing →
Enterprise
Level: the same share of first choices.
Stampli0%#7 of 11
Melio0%#– of 11
The full enterprise standing →

What the models said about Stampli

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

“Stampli is highly effective for reducing paper, but its user-centric approach can sometimes become an operational bottleneck.” Qwen 3.7 Flash · negative prompt · soft negative
“Stampli offers procure-to-pay automation with collaborative invoice management, designed for small to mid-sized businesses outgrowing basic AP tools” Claude Haiku 4.5 · paraphrase prompt · first choice
“### 1. Stampli ... AI-driven invoice capture ... Best For: Mid-market companies focused on invoice approval bottlenecks” Grok 4.20 · comparative prompt · first choice
“Prioritize tools like Stampli, Ramp, or Sage Intacct (which score highly for usability and fewer complaints).” Grok 4.20 · negative prompt · first choice

What the models said about Melio

No label in this category carried a quote.

Also compared
BILL Accounts Payable vs StampliBILL Accounts Payable vs MelioStampli vs RampStampli vs AvidXchangeStampli vs TipaltiRamp vs MelioAvidXchange vs MelioTipalti vs MelioAll fifteen 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.