Seven of fourteen models named BILL Accounts Payable first on the direct prompt; one named AvidXchange. Both were named by all fourteen models and BILL Accounts Payable carries 63 labels and AvidXchange 41, so the shares are not directly comparable.
Named in one category this edition.
Named in eleven categories this edition.
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.
Across every category in the November 2026 Edition, BILL Accounts Payable and AvidXchange were named in the same answer fifty-seven times, of the 160 answers naming BILL Accounts Payable and the 156 naming AvidXchange. In those answers AvidXchange took the first choice two times and BILL Accounts Payable eleven.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | ||||||
| GPT-5.4 mini | ||||||
| Gemini 3.5 Flash | ||||||
| Perplexity Sonar | ||||||
| Grok 4.20 | ||||||
| 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 |
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.
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“While popular, BILL has significant issues to consider: Poor customer service... BBB rating of only 1.09/5 stars” Kimi K2 · negative prompt · hard negative
“Ramp Bill Pay and Bill.com for large, complex enterprises. Industry comparisons flag potential limitations in scalability, multi-entity support” Perplexity Sonar · negative prompt · soft negative
“Model the *whole* cost, not just the subscription... It may still be a good fit; just confirm the required features and fees in your quote.” GPT-6 Luna · negative prompt · soft negative
“BILL: Offers a comprehensive AP automation solution with invoice capture, approvals, and vendor payments in one place. Pricing starts at $49 per user per month” Llama 4 Maverick · budget prompt · first choice
“BILL (formerly Bill.com) is widely regarded as the best overall accounts payable (AP) automation software for mid-market B2B companies.” Grok 4.20 · direct prompt · first choice
“BILL is the strongest all-around choice if you want real AP automation with approvals, invoice capture, and accounting sync” GPT-5.4 mini · budget prompt · first choice
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of six in this category shown.
“AvidXchange has reported issues including the need to call or email to request stop payments, files that are too large to upload, and random queues from indexer bots” Claude Haiku 4.5 · negative prompt · soft negative
“Older enterprise-heavy platforms like Basware or AvidXchange ... often suffer from long implementation times” Qwen 3.7 Flash · negative prompt · soft negative
“Mentioned in similar Reddit threads as risky for implementations that "almost got CFOs fired"” Grok 4.20 · negative prompt · soft negative
“The best accounts payable automation software for a mid-market B2B company is AvidXchange.” Llama 4 Maverick · direct prompt · first choice
“Best Overall for Mid-Market Complexity: AvidXchange” Qwen 3.7 Flash · paraphrase prompt · first choice
“AvidXchange — Best for mid-market invoice automation.” Muse Glimmer 30B · paraphrase prompt · first choice
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.