Index › Spend and procurement › Accounts payable automat › Enterprise › September 2026 Edition

Accounts payable automation for enterprise buyers

Asked as “accounts payable automation software”, and as “invoice processing automation”, on behalf of an enterprise B2B company. 40 first choices recorded across the direct, paraphrase, budget and scale prompts, twelve models each.

Standing

Tipalti and Coupa

Contested

18% of first choices, contested.

ShowinginAll 41 categories →

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.

Small business

BILL41%Clear leaderStanding →Mid-market

Stampli19%ContestedStanding →Enterprise

Tipalti18%ContestedThis page

01The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all twelve models, for an enterprise B2B company. Ordered by share.

ProductFirst-choice shareNegative rateLabelsQuadrant

Tipalti12%51accepted challenger

Coupa16%45accepted challenger

HighRadius0%28accepted challenger

Basware6%33accepted challenger

Medius4%28accepted challenger

SAP Concur Invoice30%10criticized challenger

Ramp52%21criticized challenger

SAP Concur19%26accepted challenger

Stampli32%25criticized challenger

Show the two products at 0%, ordered by negative rate

BILL74%27criticized challenger

AvidXchange43%14criticized challenger

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its vendor page.

Head to head

Stampli vs BILL Stampli vs Melio BILL vs Melio

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 →

Accepted challengerEndorsed leader

0%First-choice share → · lines at 30% share and 25% negative30%

Key

Tipalti18%

Coupa18%

HighRadius15%

Basware12%

Medius10%

SAP Concur Invoice5%

Ramp5%

SAP Concur2%

Stampli2%

AvidXchange0%

BILL0%

02What they warned about

Four of twelve models held their first choice under the paraphrase. Claude Haiku 4.5, GPT-5.4 mini, Perplexity Sonar, Mistral Small, DeepSeek V4 Flash, Qwen 3.7 Flash, Kimi K2 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

74%

20 of 27 labels negative · 11 of 12 models · 10 hard negative

“Tools to Approach with High Caution or Avoid ... Frequently outgrown by enterprises ... Reviews note poor scalability for global/large ops.” Grok 4.1 Fast, negative prompt

Ramp

52%

11 of 21 labels negative · 7 of 12 models

“Some users believe that Ramp's AP automation is slow and difficult to navigate, and it does not provide live phone support.” Claude Haiku 4.5, negative prompt

Coupa

16%

7 of 45 labels negative · 6 of 12 models · 2 hard negative

“**Coupa** (often quoted per user) become extremely expensive for large companies” Qwen 3.7 Flash, budget prompt

Stampli

32%

8 of 25 labels negative · 6 of 12 models · 1 hard negative

“**per-user pricing** (common with BILL, Stampli, Ramp Plus) will be your enemy” DeepSeek V4 Flash, budget prompt

03What they cite

Citations exist only for the models that return a source list: twelve of the twelve in this edition, and all six flagship models on the expanded tier.

Sites the answers cite

67 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. 6 of those lists are Google grounding redirects that name no site and are left out of the counts. 952 links across 229 sites, every framing counted. Ranked by the number of answers carrying the site or page.

highradius.com

vendor site · HighRadius36 answers · 61 citations · 10 models

medius.com

vendor site · Medius27 answers · 67 citations · 10 models

conseroglobal.com

27 answers · 27 citations · 10 models

ramp.com

vendor site · Ramp25 answers · 39 citations · 9 models

zoneandco.com

24 answers · 25 citations · 9 models

makershub.com

vendor site · MakersHub23 answers · 33 citations · 10 models

tipalti.com

vendor site · Tipalti20 answers · 27 citations · 9 models

corpay.com

vendor site · Corpay18 answers · 26 citations · 8 models

stampli.com

vendor site · Stampli15 answers · 20 citations · 6 models

learn.g2.com

15 answers · 15 citations · 8 models

rillion.com

vendor site · Rillion14 answers · 25 citations · 6 models

freehand.ai

14 answers · 14 citations · 7 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.

conseroglobal.com/resources/best-accounts-payable-software

27 answers · 10 models

zoneandco.com/articles/top-ap-automation-software-solutions

23 answers · 9 models

makershub.com/blog/best-accounts-payable-software-large-businesses

19 answers · 10 models

ramp.com/blog/accounts-payable/best-ap-software-for-large-businesses

17 answers · 9 models

freehand.ai/articles/best-ai-accounts-payable-automation-software

14 answers · 7 models

layer3labs.io/comparisons/best-accounts-payable-automation-software

14 answers · 9 models

learn.g2.com/best-accounts-payable-automation-software

14 answers · 8 models

medius.com/blog/top-ap-automation-software-compared-features-fit-and-tradeoffs

14 answers · 9 models

highradius.com/resources/Blog/best-ap-automation-tools

12 answers · 6 models

corpay.com/resources/blog/best-ap-automation-software

11 answers · 6 models

04How 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.

ModelDirect“What is the best accounts payable automation software for an enterprise B2B company?”Paraphrase“Which invoice processing automation would you recommend to a large B2B company with thousands of employees?”Comparative“What are the top enterprise-grade AP automation tools and how do they differ?”Budget-constrained“What is the best accounts payable automation software for a large company that needs predictable total cost across thousands of users?”Scale-constrained“We are a 5,000 person company with SSO, SOC 2 and procurement review requirements evaluating an accounts payable automation software. What should we look at?”Negative“Which AP automation tools should a large enterprise avoid or be cautious about?”

Claude Haiku 4.5no first choice

Four alternatives

Basware, Coupa, HighRadius, Tipalti

Serrala FS2 PaymentsChanged

Three alternatives

Basware, SAP Concur, SAP's Invoice Payment Manager

Medius, Tipalti

Four alternatives

Coupa, Oracle NetSuite, SAP Ariba, SAP Concur

MakersHub

Two alternatives

Tipalti, Yooz

no first choiceagainst: Ramp

GPT-5.4 miniTipalti

Two alternatives

Basware, Coupa

SAP Concur InvoiceChanged

One alternative

Tipalti

Oracle Fusion Cloud Accounts Payable / Payables Agent, SAP Ariba Buying and Invoicing

Two alternatives

Coupa, SAP S/4HANA + SAP Business Network / Ariba integration

Tipalti

One alternative

SAP Concur

against: BILL, Stamplino first choiceagainst: Adeptia Automate, Automation Anywhere, BILL, Ramp, SAP Concur

Gemini 3.5 FlashTipalti

Five alternatives

Coupa, HighRadius, Medius, Stampli, Vic.ai

against: BILL, MelioTipaltiHeld

Four alternatives

Basware, Coupa, Medius, Vic.ai

Tipalti

Five alternatives

Coupa, HighRadius, Medius, SAP Concur, Stampli

Medius

Three alternatives

Basware, Tipalti, Yooz

against: BILL, SAP Concurno first choiceagainst: Airbase, BILL, Brex, Expensify, Melio, Plooto, QuickBooks, Ramp

Perplexity SonarTipalti

Five alternatives

Basware, Coupa, HighRadius, Medius, SAP Ariba/Concur

Coupa, HighRadiusChanged

Three alternatives

Basware, Invoiced, SAP

Coupa

Five alternatives

Basware, HighRadius, Medius, SAP Ariba/Concur, Tipalti

against: AvidXchange, StampliSAP Concur Invoice

Two alternatives

Medius, Tipalti

against: Rampno first choiceagainst: AvidXchange, BILL, Melio, Ramp, Stampli, SutiAP, Yooz

Grok 4.1 FastBasware, Coupa

Three alternatives

Esker, HighRadius, Medius

Basware, CoupaHeld

One alternative

HighRadius

HighRadius, Medius

Four alternatives

Basware, Coupa, Stampli, Tipalti

against: AvidXchange, SAP Concur InvoiceTipalti

Three alternatives

Coupa, MakersHub, Routable

against: BILL, RampHighRadius, Medius

Four alternatives

Corpay, Ramp, Stampli, Tipalti

against: BILL, Coupa, Fraxion, Quadient AP, Ramp, SAP Concur Invoice, Stampli

Mistral SmallStampli

Two alternatives

SAP Concur, Tipalti

Coupa, SAP Ariba Invoice ManagementChanged

Three alternatives

BlackLine, Oracle Intelligent Invoice Automation, Tipalti

no first choiceRampagainst: Coupa, SAP Concur, Stampli, Tipaltino first choiceagainst: Zoho Invoiceagainst: BILL, Coupa, Fraxion

DeepSeek V4 FlashMedius

Four alternatives

Basware, Coupa, Esker, Tipalti

BaswareChanged

Three alternatives

Coupa, SAP Concur, Tipalti

against: StampliMedius

Seven alternatives

Basware, Coupa, HighRadius, OpenText VIM, SAP Concur, Stampli, Tipalti

against: BILL, RampMakersHub

Two alternatives

HighRadius, Ramp

against: BILL, Coupa, Stampli, Tipaltino first choiceagainst: BILL, Oracle's native AP modules, Ramp, SAP Ariba, Tipalti

Llama 4 Maverickno first choiceno first choiceHeldno first choiceno first choiceno first choiceagainst: BILL, Fraxion, Tipalti

Qwen 3.7 FlashCoupa

Six alternatives

HighRadius, Oracle NetSuite, SAP Concur / SAP Ariba, Tipalti, Workday Financials, Zynstra

HighRadiusChanged

Three alternatives

Basware, Coupa, SAP Ariba

Medius

Six alternatives

AvidXchange, Basware, Coupa, SAP Concur, Stampli, Tipalti

MakersHub

Two alternatives

Quadient AP, Tipalti

against: BILL, Coupano first choiceagainst: BILL, Blue Prism, SAP Concur Invoice, UiPath

Kimi K2Coupa, Medius

Three alternatives

Basware, SAP Concur, Tipalti

BaswareChanged

Three alternatives

Coupa, HighRadius, SAP Ariba

Medius

Five alternatives

AvidXchange, Basware, Coupa, Stampli, Tipalti

against: BILL, SAP ConcurTipalti

Three alternatives

Basware, Medius, MineralTree

against: BILL, Rippling, SAP Concurno first choiceagainst: Airbase, AvidXchange, Stampliagainst: AvidXchange, BILL, Basware, Coupa, Esker, Melio, QuickBooks, SAP Ariba

GLM 4.7 FlashXHighRadius

Eight alternatives

Basware, Coupa, Esker, Medius, SAP Ariba, SAP Concur, Stampli, Tipalti

HighRadiusHeld

Three alternatives

Basware, Coupa, SAP Concur

Coupa, Medius

Five alternatives

AvidXchange, HighRadius, SAP Concur Invoice, Stampli, Tipalti

against: BILL, RampRamp

Two alternatives

HighRadius, Tipalti

no first choiceagainst: AvidXchange, Basware, Coupa, Esker, Jaggaer, Medius, Ramp, Tipalti

MiniMax M2.5Basware, Coupa

Three alternatives

Medius, SAP Concur, Tipalti

HighRadiusChanged

Three alternatives

Oracle NetSuite, SAP Concur, Tipalti

HighRadius

Three alternatives

Basware, Medius, Tipalti

SAP Concur

Two alternatives

Coupa, HighRadius

no first choiceagainst: BILL, Tipalti, Vic.ai

Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

05The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record

Seventy-two rows: every prompt, every model, every answer.

Prompt	Model	Version string	Time (UTC)	Searched	Sources	Latency
Direct recommendation	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 18:08	yes	16	10 s
Direct recommendation	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 20:17	yes	2	7 s
Direct recommendation	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 18:21	yes	18	25 s
Direct recommendation	Perplexity Sonar	`sonar`	2026-09-17 17:53	yes	20	7 s
Direct recommendation	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 20:32	yes	36	16 s
Direct recommendation	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 21:04	yes	12	9 s
Direct recommendation	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 20:54	yes	28	25 s
Direct recommendation	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 21:03	yes	5	3 s
Direct recommendation	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 21:03	no	0	30 s
Direct recommendation	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 20:21	yes	15	30 s
Direct recommendation	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:47	yes	18	156 s
Direct recommendation	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 21:09	yes	14	27 s
Paraphrase	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 19:35	yes	9	9 s
Paraphrase	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 19:24	yes	2	5 s
Paraphrase	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 19:21	yes	18	25 s
Paraphrase	Perplexity Sonar	`sonar`	2026-09-17 18:50	yes	20	8 s
Paraphrase	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 19:13	yes	31	15 s
Paraphrase	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 20:24	no	0	5 s
Paraphrase	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 18:39	yes	20	21 s
Paraphrase	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 18:24	yes	5	3 s
Paraphrase	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 20:30	yes	5	53 s
Paraphrase	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 20:52	yes	15	24 s
Paraphrase	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 20:56	yes	15	47 s
Paraphrase	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 17:54	yes	8	30 s
Comparative	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 19:53	yes	17	10 s
Comparative	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 21:00	yes	7	10 s
Comparative	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 20:05	yes	15	30 s
Comparative	Perplexity Sonar	`sonar`	2026-09-17 20:57	yes	20	11 s
Comparative	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 21:03	yes	32	17 s
Comparative	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 21:09	yes	9	8 s
Comparative	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 20:51	yes	25	29 s
Comparative	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 20:32	yes	5	2 s
Comparative	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 19:30	yes	5	31 s
Comparative	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 18:29	yes	18	51 s
Comparative	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:01	yes	19	117 s
Comparative	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 20:42	yes	25	44 s
Budget constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 18:47	yes	18	10 s
Budget constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 20:19	yes	4	5 s
Budget constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 21:59	yes	19	23 s
Budget constrained	Perplexity Sonar	`sonar`	2026-09-17 20:37	yes	20	7 s
Budget constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 17:57	yes	43	21 s
Budget constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 18:47	yes	5	5 s
Budget constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via deepinfra`	2026-09-17 19:07	yes	26	45 s
Budget constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 21:07	yes	5	3 s
Budget constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 18:27	yes	8	40 s
Budget constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 19:56	yes	23	38 s
Budget constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:30	yes	18	83 s
Budget constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 18:26	yes	17	53 s
Scale constrained	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 20:15	yes	18	13 s
Scale constrained	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 18:40	no	0	10 s
Scale constrained	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 19:43	yes	4	28 s
Scale constrained	Perplexity Sonar	`sonar`	2026-09-17 19:54	yes	20	10 s
Scale constrained	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:49	yes	18	14 s
Scale constrained	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 19:59	no	0	8 s
Scale constrained	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 19:26	yes	10	18 s
Scale constrained	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 18:37	yes	5	4 s
Scale constrained	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 21:06	no	0	28 s
Scale constrained	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 19:19	yes	14	52 s
Scale constrained	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:48	yes	13	97 s
Scale constrained	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 18:18	yes	5	27 s
Negative framing	Claude Haiku 4.5	`claude-haiku-4-5-20251001`	2026-09-17 19:30	yes	17	13 s
Negative framing	GPT-5.4 mini	`gpt-5.4-mini-2026-03-17`	2026-09-17 19:53	yes	3	8 s
Negative framing	Gemini 3.5 Flash	`gemini-3.5-flash`	2026-09-17 19:18	yes	15	23 s
Negative framing	Perplexity Sonar	`sonar`	2026-09-17 21:01	yes	20	9 s
Negative framing	Grok 4.1 Fast	`spacexai/grok-4.1-fast-non-reasoning via vertex`	2026-09-17 18:47	yes	28	18 s
Negative framing	Mistral Small	`mistral/mistral-small via mistral`	2026-09-17 19:12	yes	5	5 s
Negative framing	DeepSeek V4 Flash	`deepseek/deepseek-v4-flash via fireworks`	2026-09-17 20:56	yes	27	32 s
Negative framing	Llama 4 Maverick	`meta/llama-4-maverick via bedrock`	2026-09-17 19:15	yes	5	3 s
Negative framing	Qwen 3.7 Flash	`alibaba/qwen3.7-flash via alibaba`	2026-09-17 20:06	yes	9	42 s
Negative framing	Kimi K2	`moonshotai/kimi-k2 via novita`	2026-09-17 18:43	yes	28	51 s
Negative framing	GLM 4.7 FlashX	`zai/glm-4.7-flashx via zai`	2026-09-17 19:05	yes	27	108 s
Negative framing	MiniMax M2.5	`minimax/minimax-m2.5 via minimax`	2026-09-17 20:16	yes	15	40 s

Normalization in this category

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

Category-scoped readings

BILL AP/AR read as BILL

Bill.com read as BILL

Bill.com (BILL) read as BILL

Bill.com (or BILL) read as BILL

BlackLine Accounts Payable Automation read as BlackLine

Microsoft Dynamics 365 read as Microsoft Dynamics 365 Finance

QuickBooks Bill Pay read as QuickBooks

Ramp Bill Pay read as Ramp

Unresolved, counted raw

Adeptia Automate

IBM AP Automation

Kofax / ABBYY

OpenText VIM

Oracle Fusion Cloud Accounts Payable / Payables Agent

Oracle Intelligent Invoice Automation

Oracle's native AP modules

Plouton AI

SAP Ariba Buying and Invoicing

SAP Ariba Invoice Management

SAP S/4HANA + SAP Business Network / Ariba integration

SAP S4/HANA

SAP's Invoice Payment Manager

Zynstra

Discontinued, still offered

No shut-down product was recommended here.

Accounts payable automation for enterprise buyers

By buyer segment

01The standing

Recommended versus criticized

02What they warned about

03What they cite

Sites the answers cite

Pages the answers cite

04How they answered

05The record

Normalization in this category

Also in spend and procurement