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Sales tax automation · October 2026 Edition

Anrok vs Vertex

One of fourteen models named Anrok first on the direct prompt; two named Vertex. Anrok was named by ten of the fourteen models and Vertex by fourteen and Anrok carries 21 labels and Vertex 45, so the shares are not directly comparable.

Anrok

accepted challenger

Named in four categories this edition.

Vertex

accepted challenger

Named in five categories this edition.

First-choice share6%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%18%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#5#6A position in a field of 9; printed, not drawn.
Labels2145A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Anrok reading right to left. Rank and label count are printed, not drawn.Avalara AvaTax was named alongside these two in eleven of the fourteen direct answers. Avalara AvaTax vs Anrok · Avalara AvaTax vs Vertex · TaxCloud vs Anrok

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.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
AnrokFirst choices, of fourteen modelsVertex
Direct122 against Vertex
Paraphrase103 against Vertex
Comparative00
Budget-constrained001 against Vertex
Scale-constrained101 against Vertex
Negative001 against Vertex
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, Anrok and Vertex were named in the same answer forty-eight times, of the 66 answers naming Anrok and the 244 naming Vertex. In those answers Vertex took the first choice thirteen times and Anrok five.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Anrok and Vertex stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
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
Anrok Vertex first choice named as an alternative argued againstblank: not namedEach cell is one answer, Anrok on the left and Vertex on the right.

The direct prompt

The plain question, one answer per model, grouped by where Anrok and Vertex stood in it.

Anrok first, Vertex not the choice

1 of 14 modelsVertex was named in the answer but not as the choice, or not at all.
Kimi K2Anrok alternatives: Avalara AvaTax, TaxJar

Vertex first, Anrok an alternative

2 of 14 modelsAnrok was named in the answer but not as the choice, or not at all.
Llama 4 MaverickVertex alternatives: Stripe Tax
Qwen 3.7 FlashVertex alternatives: Anrok, Taxwire

Neither was the first choice, one was named

10 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Taxwire alternatives: Anrok, Avalara AvaTax, Vertex Tax Technology
GPT-5.4 miniAvalara AvaTax alternatives: Anrok, Sovos, Vertex
Gemini 3.5 FlashAvalara AvaTax alternatives: Anrok, Taxwire, Vertex, Zamp
Perplexity SonarAvalara AvaTax, TaxCloud alternatives: Anrok, TaxJar
Grok 4.1 FastAvalara AvaTax alternatives: Sovos, Vertex
Mistral SmallAvalara AvaTax alternatives: Commenda, TaxJar, Vertex
DeepSeek V4 FlashTaxwire alternatives: Avalara AvaTax, TaxCloud, Vertex
MiniMax M2.5Avalara AvaTax, Commenda alternatives: Sovos, Vertex
GPT-6 LunaAvalara AvaTax alternatives: Sovos, Vertex
Muse Glimmer 30BAvalara AvaTax, Sovos, formerly Taxify alternatives: Vertex

Neither was named

1 of 14 modelsThe answer made no first choice from these two in this category.
GLM 4.7 FlashXCommenda, Taxwire alternatives: TaxCloud

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.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Anrok leads by seven points.
Anrok7%#4 of 11
Vertex0%#11 of 11
The full small business standing →
Mid-marketThe figures above
Anrok leads by two points.
Anrok6%#5 of 9
Vertex4%#6 of 9
The full mid-market standing →
Enterprise
The order flips: Vertex leads at enterprise.
Vertex48%#1 of 8
Anrok0%#8 of 8
The full enterprise standing →

What the models said about Anrok

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Two of two in this category shown.

“If you're SaaS or subscription-based → Anrok (purpose-built for your model)” Kimi K2 · direct prompt · first choice
“Best for B2B SaaS and Software Companies: Anrok or Numeral” Gemini 3.5 Flash · paraphrase prompt · first choice

What the models said about Vertex

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“Avoid heavy enterprise systems like ... Vertex. Their base subscriptions generally cost thousands of dollars annually” Gemini 3.5 Flash · budget prompt · hard negative
“If your business is doing under $10M–$20M in revenue, avoid these tools.” Gemini 3.5 Flash · negative prompt · hard negative
“Enterprise-focused pricing ($40K–$100K/year typical), 6–12 month implementations—not ideal for mid-market unless on major ERPs” Kimi K2 · direct prompt · soft negative
“Vertex is generally considered the gold standard for enterprise-level precision.... designed specifically for mid-market and growing businesses.” Qwen 3.7 Flash · direct prompt · first choice
“Vertex Inc - Best for mid-market companies with 5–30 entities across 8+ countries” Llama 4 Maverick · direct prompt · first choice
Also compared

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.