Coupa vs Stampli:Which is more popular?
In September 2026, Coupa had more branded searches than Stampli among accounts payable automation platforms worldwide. Coupa had about 201,000 branded searches, while Stampli had 49,600. Coupa made up 42% of all accounts payable automation platform searches we track, and Stampli accounted for 10.4%. When we asked ChatGPT and Google AI Overviews about accounts payable automation platforms, Coupa and Stampli each appeared in three of the five answers. Stampli was mentioned before Coupa in three out of four answers that named either.
Who do people search for more?
Coupa, about 4 searches for every 1 for Stampli
Who does AI mention more?
Both were mentioned in 3 of 5 answers.
Who does AI recommend more?
Stampli, named ahead of Coupa in 3 of 4 answers
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Top accounts payable automation platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Coupa was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Stampli was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Stampli was listed before Coupa in three out of four answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Tipalti5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Medius5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
BILL4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
AvidXchange4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers- Coupa3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Stampli3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Basware2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Ramp2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Airbase0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Melio0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about accounts payable automation platforms
5 answers
Asked ChatGPT
“Which accounts payable automation platform should I use?”
Asked ChatGPT
“What are the best accounts payable automation platforms?”
Asked ChatGPT
“What's the best accounts payable automation platform for supplier invoices?”
Searched Google, AI Overview
“accounts payable automation software”
Searched Google, AI Overview
“best ap automation software”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Coupa or Stampli more popular in search?
This chart shows how often people search Google for Coupa and Stampli by name. Each line represents a brand's share of searches for all ten accounts payable automation platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for Coupa, Stampli. The figures are in the table below the chart.
View monthly share of searches table
| Month | Coupa | Tipalti | Stampli | BILL | Airbase | Medius | AvidXchange | Basware | Melio | Ramp |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 41.5% | 10.3% | 8.4% | 11.2% | 8.4% | 6.8% | 6.8% | 5.6% | 0.94% | 0.05% |
| Nov 2025 | 38.8% | 11.7% | 9.5% | 10.4% | 9.5% | 6.4% | 6.4% | 6.4% | 0.88% | 0.06% |
| Dec 2025 | 39.1% | 11.9% | 9.6% | 10.5% | 9.6% | 6.4% | 6.4% | 5.3% | 1.1% | 0.05% |
| Jan 2026 | 37.9% | 11.5% | 9.3% | 10.2% | 11.4% | 6.2% | 6.2% | 6.2% | 1.1% | 0.06% |
| Feb 2026 | 37.3% | 11.3% | 9.2% | 10.1% | 13.7% | 6.1% | 6.1% | 5% | 1% | 0.07% |
| Mar 2026 | 38.3% | 9.6% | 7.8% | 10.4% | 17.3% | 5.2% | 5.2% | 5.2% | 1.1% | 0.05% |
| Apr 2026 | 43% | 10.8% | 8.7% | 9.5% | 10.6% | 5.8% | 5.8% | 4.7% | 0.98% | 0.06% |
| May 2026 | 38.9% | 11.9% | 9.6% | 10.5% | 9.5% | 6.4% | 6.4% | 5.2% | 1.6% | 0.05% |
| Jun 2026 | 43% | 10.7% | 8.7% | 11.6% | 8.7% | 5.8% | 5.8% | 4.7% | 0.97% | 0.04% |
| Jul 2026 | 39.6% | 11.9% | 9.8% | 10.7% | 9.7% | 6.5% | 5.3% | 5.3% | 1.1% | 0.06% |
| Aug 2026 | 38.7% | 11.6% | 11.6% | 10.4% | 9.5% | 6.4% | 5.2% | 5.2% | 1.3% | 0.05% |
| Sep 2026 | 42% | 10.4% | 10.4% | 9.3% | 8.5% | 6.9% | 5.7% | 5.7% | 1.2% | 0.05% |
How has the Coupa and Stampli comparison changed over the last 12 months?
3 findings
- Coupa was ahead of Stampli in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Coupa’s share of searches among accounts payable automation platforms worldwide moved from 41.5% to 42%, and its estimated monthly branded searches held steady at 201K.
- Across the 12 months ending September 2026, Stampli’s share of searches among accounts payable automation platforms worldwide moved from 8.4% to 10.4%, and its estimated monthly branded searches moved from 40.6K to 49.6K.
How did search popularity change for accounts payable automation platforms worldwide in September 2026?
2 changes
In September 2026, Coupa gained share of searches among accounts payable automation platforms worldwide, from 38.7% to 42%.
In September 2026, Stampli lost share of searches among accounts payable automation platforms worldwide, from 11.6% to 10.4%.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Coupa’s and Stampli’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Other head-to-heads among accounts payable automation platforms
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