Nine of fourteen models named Avalara AvaTax first on the direct prompt; zero named TaxJar. Both were named by all fourteen models and Avalara AvaTax carries 62 labels and TaxJar 59, so the shares are not directly comparable.
Named in one category this edition.
Named in four 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 sales tax automation page.
Across every category in the November 2026 Edition, Avalara AvaTax and TaxJar were named in the same answer 123 times, of the 189 answers naming Avalara AvaTax and the 177 naming TaxJar. In those answers TaxJar took the first choice twenty-three times and Avalara AvaTax thirty-four.
| 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.
“The tools with the most documented user complaints recently are QuickBooks Online (calculation errors) and Avalara (service/accuracy issues).” Kimi K2 · negative prompt · hard negative
“High error rates in automation, over-reliance leading to compliance failures if not constantly monitored, complex setup” Grok 4.20 · negative prompt · hard negative
“Avalara is the most heavily criticized sales tax platform in terms of customer complaints.” DeepSeek V4 Flash · negative prompt · hard negative
“Avalara (AvaTax): The broad industry default. Strongest for deep ERP integrations (NetSuite, SAP) and large SKU catalogs, though pricing and support can be variable.” Gemini 3.5 Flash · scale prompt · first choice
“you'll likely want solutions like Avalara, TaxCloud, or Taxwire that offer enterprise-grade capabilities with mid-market pricing structures” GLM 4.7 FlashX · scale prompt · first choice
“For most mid-market B2B companies, Avalara is the top choice due to its comprehensive features, integrations, and market leadership.” Mistral Small · direct prompt · first choice
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of five in this category shown.
“Common issues: Poor customer support ... failure to properly handle exempt customers ... inaccurate calculations or reports that require manual cross-checks” Grok 4.20 · negative prompt · hard negative
“post-acquisition quality has declined significantly... the software openly admits its reporting is broken” DeepSeek V4 Flash · negative prompt · hard negative
“TaxJar is not built for complex B2B scenarios, multi-entity structures, or audit defense situations” Claude Haiku 4.5 · direct prompt · hard negative
“Small company → TaxJar; ... TaxJar stands out from Avalara with higher reviewer satisfaction across ease of use and support” Muse Glimmer 30B · comparative prompt · first choice
“TaxJar is the easiest, most affordable, and most reliable choice.” DeepSeek V4 Flash · comparative 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.