Zero of fourteen models named Longview Tax first on the direct prompt; zero named Sovos Tax Provision. Longview Tax was named by fourteen of the fourteen models and Sovos Tax Provision by eight and Longview Tax carries 45 labels and Sovos Tax Provision 13, so the shares are not directly comparable.
Named in two categories this edition.
Named in one category 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 corporate tax provision page.
Across every category in the November 2026 Edition, Longview Tax and Sovos Tax Provision were named in the same answer fifteen times, of the 123 answers naming Longview Tax and the 32 naming Sovos Tax Provision. In those answers Sovos Tax Provision took the first choice zero times and Longview Tax zero.
| 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.
“explicitly says to avoid or be cautious about Longview, ONESOURCE, Workiva, Oracle Tax Reporting, and Corptax” Muse Glimmer 30B · negative prompt · hard negative
“Avoid Enterprise Tools: ONESOURCE, Bloomberg, or Longview ... often not viable under $10k–$20k/year.” Grok 4.20 · budget prompt · hard negative
“Longview Tax — excellent, but pricing is quote-only and enterprise-tier.” DeepSeek V4 Flash · budget prompt · hard negative
“Request demos from insightsoftware and Longview Tax if you focus on corporate income tax” Qwen 3.7 Flash · paraphrase prompt · first choice
“The best income tax compliance software for a mid-sized B2B company is insightsoftware” Llama 4 Maverick · paraphrase prompt · first choice
“Longview Tax is likely the best shortlist candidate for corporate tax provision” Perplexity Sonar · budget prompt · first choice
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.
“Taxfyle or the Sovos eCommerce/tiered offerings are the most affordable provision-oriented options” Muse Glimmer 30B · budget prompt · first choice
“Sovos is the best fit for multinational enterprises needing jurisdiction-level provision automation” Muse Glimmer 30B · comparative prompt · alternative
“Choose Sovos if you want a broader compliance platform covering indirect taxes” Perplexity Sonar · paraphrase prompt · alternative
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.