September 2026 Edition, published · The permanent record of that edition, superseded since. The current standing is on the category page →
Index › Finance › Spend and procurement › Accounts payable automat › Small business · September 2026 Edition

Accounts payable automation for small business buyers

Asked as “accounts payable automation software”, and as “invoice processing automation”, on behalf of a small B2B company. 44 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.
Standing · first-choice share
41%
41BILL Accounts Payable27Ramp20Melio11others

41% of first choices, clear leader.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.

The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for a small B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrant
01BILL Accounts Payable41%21%62endorsed leader
02Ramp27%10%52accepted challenger
03Melio20%7%46accepted challenger
04QuickBooks7%0%17accepted challenger
Show the four products at 0%, ordered by negative rate
08Coupa0%80%10criticized challenger
07Tipalti0%48%25criticized challenger
06Stampli0%29%14criticized challenger
05Plooto0%0%11accepted challenger
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
Head to headHead-to-head pages are published for mid-market buyers, so these open on mid-market figures, not small business.
All twenty-one head-to-head pages: the top seven products, each against each

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
01
02
03
04
05
06
07
08
Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative60%
Key
01BILL Accounts Payable41%
02Ramp27%
03Melio20%
04QuickBooks7%
05Plooto0%
06Stampli0%
07Tipalti0%
08Coupa0%

What they warned about

Seven of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, Grok 4.20, Qwen 3.7 Flash, GLM 4.7 FlashX and MiniMax M2.5 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
BILL Accounts Payable
21%
13 of 62 labels negative · 9 of 12 models
“BILL (formerly Bill.com) is actually a top recommendation for small businesses, but it has specific red flags to watch out for regarding integration.” GLM 4.7 FlashX, negative prompt
Basware
100%
7 of 7 labels negative · 7 of 12 models · 6 hard negative
“Enterprise-Grade ERPs (e.g., SAP Concur, Basware, Oracle NetSuite) ... Why Avoid: A small business ... will find the learning curve prohibitive” GLM 4.7 FlashX, negative prompt
SAP Concur
89%
8 of 9 labels negative · 7 of 12 models · 6 hard negative
“Enterprise-Grade ERPs (e.g., SAP Concur, Basware, Oracle NetSuite) ... they are generally wildly oversized for a small business.” GLM 4.7 FlashX, negative prompt
Coupa
80%
8 of 10 labels negative · 7 of 12 models · 5 hard negative
“Coupa is a comprehensive spend management platform. For a small business, it offers far more feature bloat than needed” Qwen 3.7 Flash, negative prompt

What they cite

Twelve of the twelve models returned a source list in this edition: four return the pages they cited and eight the search results they consulted.

Sites the answers cite

68 of 72 answers in this category came back with a source list, from 12 of 12 models: citations where the model returns them, or the search results it consulted. 903 links across 213 sites, every framing counted. Ranked by the number of answers carrying the site or page.

vendor site · Ramp41 answers · 64 citations · 12 models
29 answers · 29 citations · 10 models
vendor site · ApprovalMax28 answers · 29 citations · 10 models
23 answers · 29 citations · 9 models
vendor site · Tipalti22 answers · 23 citations · 10 models
vendor site · BILL20 answers · 22 citations · 9 models
vendor site · MakersHub19 answers · 26 citations · 9 models
vendor site · G218 answers · 29 citations · 10 models
vendor site · Medius17 answers · 18 citations · 7 models
vendor site · HighRadius14 answers · 18 citations · 10 models
vendor site · Invoice Fly14 answers · 15 citations · 8 models
14 answers · 14 citations · 8 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

Search against answers

Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “accounts payable automation software”, “ap automation tools”, “best accounts payable automation software”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
Company and productsShareOwn site citedName searches, GoogleAI search demand, est.Organic visitsPaid search a month, est.Google ads, last 30 daysBest Google position
BILL bill.com
BILL Accounts Payable 41%
41%1502,740,0001,063,0011,783,039 company$199,231119
Ramp ramp.com27%916246,00049,733770,056$13,511120
Melio melio.com20%28133,10049236,039$1,42960
QuickBooks quickbooks.ninja7%2881,000,00054,681253
Zoho zoho.com
Zoho Books 2%
2%36727,1002681,216,894 company$51,031119
Rho rho.co2%15274,0007,366182,562$4162
Plooto plooto.com0%451,0002617,5780
Xero xero.com0%72990,5004,6101,200,289$500119
ApprovalMax approvalmax.com0%71,300101,603$144168
Stampli stampli.com0%19418,1006826,332$39531

Google's top ten for the three searches hold 20 sites; 4 of them are among the sites the models cited here (blog.approvalmax.com, makershub.com, medius.com, tipalti.com). The first result for “accounts payable automation software” is reddit.com.

How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ShowHide
ModelDirect“What is the best accounts payable automation software for a small B2B company?”Paraphrase“Which invoice processing automation would you recommend to a small business that sells to other businesses?”Comparative“What are the top AP automation tools for a small team and how do they differ?”Budget-constrained“What is the best accounts payable automation software for a small company with a tight budget?”Scale-constrained“We are a 30 person company evaluating an accounts payable automation software. What should we look at?”Negative“Which AP automation tools should a small business avoid or be cautious about?”
Claude Haiku 4.5BILL Accounts Payable, Ramp
Three alternativesAirbase, MineralTree, Stampli
RhoChanged
Three alternativesBILL Accounts Payable, Melio, Tipalti
against: Stampli
BILL Accounts Payable, Ramp
Two alternativesMelio, Tipalti
Ramp
One alternativeMelio
no first choicenothing named
GPT-5.4 miniBILL Accounts Payable
Three alternativesApprovalMax, Melio, Ramp
against: Tipalti
BILL Accounts PayableHeld
Five alternativesBilltrust, Invoiced, Melio, Paystand, Plooto
BILL Accounts Payable
Three alternativesAirbase, Melio, Ramp
against: Coupa, Tipalti
Melio, Zoho Booksagainst: BILL Accounts Payable, Rampno first choiceagainst: ADP, SAP Concur, Softco
Gemini 3.5 FlashMelio
Four alternativesBILL Accounts Payable, MakersHub, Ramp, Tipalti
MelioHeld
Four alternativesBILL Accounts Payable, Plooto, Ramp, Upflow
Melio
Four alternativesApprovalMax, BILL Accounts Payable, MakersHub, Ramp
Ramp
Three alternativesBILL Accounts Payable, MakersHub, Melio
against: Stampli, Tipalti
Ramp
Two alternativesBILL Accounts Payable, Melio
against: AvidXchange, BILL Accounts Payable, Coupa, HighRadius, Melio, SAP Concur, Tipalti
Perplexity SonarBILL Accounts Payable
Two alternativesMelio, Ramp
against: Tipalti
BILL Accounts PayableHeld
Three alternativesInvoice Fly, QuickBooks, Xero
Ramp
Three alternativesBILL Accounts Payable, Melio, Stampli
against: Tipalti
Melio
Three alternativesQuickBooks, Ramp, Xero
against: BILL Accounts Payable
no first choiceagainst: Coupa, HighRadius, Medius, Sage Intacct
Grok 4.20BILL Accounts Payable
Two alternativesMelio, Ramp
against: SAP Concur
QuickBooksChanged
Three alternativesFreshBooks, Xero, Zoho Invoice
against: BILL Accounts Payable
BILL Accounts Payable
Three alternativesMelio, Plooto, Ramp
against: AvidXchange, Stampli, Tipalti
Melio, Rampagainst: AvidXchange, BILL Accounts Payable, QuickBooks + add-ons, Stamplino first choiceagainst: AvidXchange, BILL Accounts Payable, Basware, Coupa, HighRadius, Ramp, SAP Concur
Mistral SmallBILL Accounts Payable
One alternativeRamp
BILL Accounts PayableHeld
Two alternativesInvoiced, QuickBooks
BILL Accounts Payable
Four alternativesApprovalMax, Melio, Plooto, Ramp
Melio
Two alternativesQuickBooks, Xero
no first choiceagainst: Sage Intacctagainst: Basware, Ramp, SAP Concur
DeepSeek V4 FlashBILL Accounts Payable
Two alternativesMelio, Ramp
against: Tipalti
BILL Accounts PayableHeld
Four alternativesMelio, QuickBooks, Ramp, Zoho Books
BILL Accounts Payable, Ramp
Two alternativesMelio, Stampli
against: Tipalti
Melio
Four alternativesBILL Accounts Payable, Plooto, QuickBooks, Ramp
no first choiceagainst: AvidXchange, BILL Accounts Payable, Basware, Coupa, Medius, SAP Concur, Tipalti
Llama 4 MaverickBILL Accounts Payable
Three alternativesDocuClipper, Fueler, Ramp
BILL Accounts PayableHeld
Two alternativesAvidXchange, Medius
Ramp
Three alternativesBILL Accounts Payable, Melio, Tipalti
no first choiceno first choiceagainst: BILL Accounts Payable, Ramp, SutiAP, Tipalti
Qwen 3.7 FlashBILL Accounts Payable, Ramp
One alternativeFueler
QuickBooksChanged
Two alternativesBILL Accounts Payable, Invoice Fly
Ramp
Three alternativesBILL Accounts Payable, Melio, Stampli
Ramp
One alternativeMelio
against: BILL Accounts Payable
no first choiceagainst: Coupa, SAP Aribaagainst: BILL Accounts Payable, Basware, Coupa, HighRadius, Melio, Oracle NetSuite, SAP Ariba, Sage Intacct
Kimi K2BILL Accounts Payable
Three alternativesMelio, Ramp, Tipalti
BILL Accounts PayableHeld
Two alternativesFreshBooks, QuickBooks
against: Wave
Ramp
Four alternativesApprovalMax, BILL Accounts Payable, Melio, Plooto
Melio, Ramp
Two alternativesQuickBooks, Xero
against: BILL Accounts Payable
no first choiceagainst: BILL Accounts Payable, Basware, Coupa, HighRadius, Medius, SAP
GLM 4.7 FlashXRamp
Four alternativesBILL Accounts Payable, Melio, Stampli, Tipalti
BILL Accounts PayableChanged
One alternativeRamp
Melio, Ramp
Five alternativesApprovalMax, AvidXchange, BILL Accounts Payable, Stampli, Tipalti
Ramp
Three alternativesInvoice Fly, Melio, Zoho Books
no first choiceagainst: BILL Accounts Payable, Basware, Melio, Oracle NetSuite, Ramp, SAP Concur, Tipalti
MiniMax M2.5BILL Accounts Payable, Ramp
Three alternativesMelio, Plooto, Stampli
BILL Accounts Payable, QuickBooksChanged
Three alternativesChargebee, Ramp, Zoho Invoice
BILL Accounts Payable, Ramp
Four alternativesAirbase, Melio, Stampli, Tipalti
Melio, Ramp
Three alternativesBILL Accounts Payable, QuickBooks, Zoho Books
no first choiceagainst: Basware, SAP Concur
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency.
Seventy-two rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency
Direct recommendationClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 20:35yes98 s
Direct recommendationGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:57yes56 s
Direct recommendationGemini 3.5 Flashgemini-3.5-flash2026-09-17 20:03yes816 s
Direct recommendationPerplexity Sonarsonar2026-09-17 20:14yes205 s
Direct recommendationGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 20:43yes2716 s
Direct recommendationMistral Smallmistral/mistral-small via mistral2026-09-17 17:54yes54 s
Direct recommendationDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 19:51yes812 s
Direct recommendationLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 20:32yes52 s
Direct recommendationQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:30yes559 s
Direct recommendationKimi K2moonshotai/kimi-k2 via novita2026-09-17 18:58yes1036 s
Direct recommendationGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 19:44yes1442 s
Direct recommendationMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:08yes1347 s
ParaphraseClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 20:59yes97 s
ParaphraseGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:32yes37 s
ParaphraseGemini 3.5 Flashgemini-3.5-flash2026-09-17 21:52yes1019 s
ParaphrasePerplexity Sonarsonar2026-09-17 19:54yes205 s
ParaphraseGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:06yes4117 s
ParaphraseMistral Smallmistral/mistral-small via mistral2026-09-17 19:30yes55 s
ParaphraseDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-17 18:05yes2360 s
ParaphraseLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 18:06yes53 s
ParaphraseQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 20:07yes518 s
ParaphraseKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:36yes1848 s
ParaphraseGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:03yes1099 s
ParaphraseMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:44yes928 s
ComparativeClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 18:14yes138 s
ComparativeGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:02yes615 s
ComparativeGemini 3.5 Flashgemini-3.5-flash2026-09-17 19:10yes923 s
ComparativePerplexity Sonarsonar2026-09-17 19:03yes188 s
ComparativeGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:57yes2415 s
ComparativeMistral Smallmistral/mistral-small via mistral2026-09-17 20:47yes56 s
ComparativeDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 18:23yes1219 s
ComparativeLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 17:53yes52 s
ComparativeQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:05yes1036 s
ComparativeKimi K2moonshotai/kimi-k2 via novita2026-09-17 20:30yes1430 s
ComparativeGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:05yes14135 s
ComparativeMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 17:58yes551 s
Budget constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 19:03yes97 s
Budget constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 19:25yes45 s
Budget constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 18:13yes1924 s
Budget constrainedPerplexity Sonarsonar2026-09-17 20:41yes205 s
Budget constrainedGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:08yes2715 s
Budget constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 19:47yes53 s
Budget constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 20:40yes810 s
Budget constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 19:16yes53 s
Budget constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 19:15yes934 s
Budget constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 18:01yes817 s
Budget constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:57yes23118 s
Budget constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 18:50yes815 s
Scale constrainedClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 18:49no06 s
Scale constrainedGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 20:48no07 s
Scale constrainedGemini 3.5 Flashgemini-3.5-flash2026-09-17 21:55yes1156 s
Scale constrainedPerplexity Sonarsonar2026-09-17 18:17yes208 s
Scale constrainedGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 18:10yes1210 s
Scale constrainedMistral Smallmistral/mistral-small via mistral2026-09-17 18:30no06 s
Scale constrainedDeepSeek V4 Flashdeepseek/deepseek-v4-flash via deepinfra2026-09-17 19:35yes1979 s
Scale constrainedLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 21:00yes53 s
Scale constrainedQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 19:58yes525 s
Scale constrainedKimi K2moonshotai/kimi-k2 via novita2026-09-17 19:06yes974 s
Scale constrainedGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 20:57yes15184 s
Scale constrainedMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:57no07 s
Negative framingClaude Haiku 4.5claude-haiku-4-5-202510012026-09-17 18:33yes1712 s
Negative framingGPT-5.4 minigpt-5.4-mini-2026-03-172026-09-17 18:14yes57 s
Negative framingGemini 3.5 Flashgemini-3.5-flash2026-09-17 19:09yes2929 s
Negative framingPerplexity Sonarsonar2026-09-17 19:50yes204 s
Negative framingGrok 4.20spacexai/grok-4.1-fast-non-reasoning via vertex (asked for grok-4.20-non-reasoning; the API answered as this version)2026-09-17 19:37yes4119 s
Negative framingMistral Smallmistral/mistral-small via mistral2026-09-17 17:57yes55 s
Negative framingDeepSeek V4 Flashdeepseek/deepseek-v4-flash via fireworks2026-09-17 19:19yes2831 s
Negative framingLlama 4 Maverickmeta/llama-4-maverick via bedrock2026-09-17 20:02yes55 s
Negative framingQwen 3.7 Flashalibaba/qwen3.7-flash via alibaba2026-09-17 18:04yes1536 s
Negative framingKimi K2moonshotai/kimi-k2 via novita2026-09-17 18:51yes2473 s
Negative framingGLM 4.7 FlashXzai/glm-4.7-flashx via zai2026-09-17 18:28yes28124 s
Negative framingMiniMax M2.5minimax/minimax-m2.5 via minimax2026-09-17 20:16yes2335 s

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

ShowHide
Category-scoped readings
BILL read as BILL Accounts Payable
BILL (Bill.com) read as BILL Accounts Payable
BILL (formerly Bill.com) read as BILL Accounts Payable
BILL / Bill.com read as BILL Accounts Payable
BILL AP & AR read as BILL Accounts Payable
BILL AP/AR read as BILL Accounts Payable
BILL.com read as BILL Accounts Payable
Bill.com read as BILL Accounts Payable
Corpay One read as Corpay Complete
Dext read as Dext Prepare
QuickBooks Bill Pay read as QuickBooks
QuickBooks Online read as QuickBooks
QuickBooks Online (with Advanced or Enterprise plans) read as QuickBooks
Ramp Bill Pay read as Ramp
Unresolved, counted raw
Apptivo / Odoo
Checkflo
Checkrun
Ken from Finance
Discontinued, still offered
No shut-down product was recommended here.
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