PEO providers · October 2026 Edition
Justworks vs Paychex
Zero of fourteen models named Justworks first on the direct prompt; one named Paychex. Justworks was named by thirteen of the fourteen models and Paychex by seven and Justworks carries 38 labels and Paychex 11, so the shares are not directly comparable.
Named in thirteen categories this edition.
Named in six categories this edition.
First-choice share24%4%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate8%18%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#7A position in a field of 9; printed, not drawn.
Labels3811A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Justworks reading right to left. Rank and label count are printed, not drawn.ADP TotalSource was named alongside these two in ten of the fourteen direct answers. Justworks vs ADP TotalSource · Justworks vs TriNet · Justworks vs Paychex PEO
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 PEO providers page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
JustworksFirst choices, of fourteen modelsPaychex
Direct011 against Justworks
Paraphrase10
Comparative20
Budget-constrained101
Scale-constrained10
Negative012 against Justworks · 2 against Paychex
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.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Justworks and Paychex stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | | ||||
| Gemini 3.5 Flash | | | | |||
| Perplexity Sonar | | | ||||
| Grok 4.1 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 | | |
Justworks Paychex first choice named as an alternative argued againstblank: not namedEach cell is one answer, Justworks on the left and Paychex on the right.The direct prompt
The plain question, one answer per model, grouped by where Justworks and Paychex stood in it.
Paychex first, Justworks not the choice
1 of 14 modelsJustworks was named in the answer but not as the choice, or not at all.Perplexity SonarInsperity, Paychex alternatives: ADP TotalSource, Deel, Rippling
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Grok 4.1 FastInsperity alternatives: ADP TotalSource, Justworks, Paychex PEO, TriNet
DeepSeek V4 FlashADP TotalSource, Rippling alternatives: Insperity, Justworks, TriNet
Kimi K2ADP TotalSource, TriNet alternatives: Insperity, Justworks, Paychex PEO/Oasis
GLM 4.7 FlashXADP TotalSource alternatives: G&A Partners, Justworks, Paychex PEO, Rippling, TriNet
Neither was named
9 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5no first choice
GPT-5.4 miniADP TotalSource alternatives: Insperity, TriNet
Gemini 3.5 FlashRippling alternatives: ADP TotalSource, Insperity, TriNet
Mistral SmallADP TotalSource, Paychex PEO alternatives: Deel Hire
Llama 4 MaverickPaychex PEO alternatives: Deel, Guideflow
Qwen 3.7 FlashCoAdvantage alternatives: Deel, Paychex PEO, TriNet
MiniMax M2.5Paychex PEO alternatives: CoAdvantage, Deel Hire
GPT-6 LunaADP TotalSource alternatives: Insperity, TriNet
Muse Glimmer 30BADP TotalSource alternatives: Engage PEO, Insperity, Paychex PEO, TriNet
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
Justworks leads by sixty-eight points.
Justworks70%#1 of 8Paychex2%#7 of 8Mid-marketThe figures above
Enterprise
Level: the same share of first choices.
Justworks2%#6 of 8Paychex2%#5 of 8What the models said about Justworks
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.
“though it may be a better fit for smaller or less complex teams than a traditional mid-market operation” Perplexity Sonar · direct prompt · soft negative
“While big names (like TriNet, JustWorks, ADP) get complaints due to their size” Qwen 3.7 Flash · negative prompt · soft negative
“Justworks is usually the best first PEO to look at because it's widely cited as a low-friction option with transparent per-employee pricing” GPT-5.4 mini · budget prompt · first choice
“For pure budget (under $100/employee) + full PEO: Start with Justworks Basic. It's frequently ranked #1 for small businesses” Grok 4.1 Fast · budget prompt · first choice
“Justworks and the provider highlighted by EORHQ (at $59/employee/month) are the top choices due to their affordability” Mistral Small · budget prompt · first choice
What the models said about Paychex
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“A major drawback users mention with Paychex is issues with accurate time-tracking and payroll processing” Claude Haiku 4.5 · negative prompt · soft negative
“Best overall for midsize businesses: Paychex — multiple guides explicitly position it as a strong fit for midsize companies.” Perplexity Sonar · direct prompt · first choice
“SAFE BET: Stick to large, publicly traded PEOs (like Paychex, ADP TotalSource, Rippling)” Qwen 3.7 Flash · negative prompt · first choice
“Paychex appears to be one of the more budget-friendly options for very small teams” Perplexity Sonar · budget 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.