Justworks vs Paychex PEO
One of fourteen models named Justworks first on the direct prompt; one named Paychex PEO. Both were named by all fourteen models and Justworks carries 43 labels and Paychex PEO 36, so the shares are not directly comparable.
Named in eleven 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 PEO providers page.
By framing
JustworksFirst choices, of fourteen modelsPaychex PEO
Across every category in the November 2026 Edition, Justworks and Paychex PEO were named in the same answer seventy-four times, of the 313 answers naming Justworks and the 99 naming Paychex PEO. In those answers Paychex PEO took the first choice zero times and Justworks forty-five.
Every model, every framing
| 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 | | | | |
Justworks Paychex PEO first choice named as an alternative argued againstblank: not namedEach cell is one answer, Justworks on the left and Paychex PEO on the right.The direct prompt
Justworks first, Paychex PEO not the choice
1 of 14 modelsPaychex PEO was named in the answer but not as the choice, or not at all.Paychex PEO first, Justworks not the choice
1 of 14 modelsJustworks was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
5 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
7 of 14 modelsThe answer made no first choice from these two in this category.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
Justworks76%#1 of 7Paychex PEO0%#6 of 7Justworks28%#2 of 7Paychex PEO2%#6 of 7What the models said about Justworks
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of four in this category shown.
“Be cautious with: Tech-first or startup-oriented PEOs (e.g., Justworks, Rippling).” Gemini 3.5 Flash · negative prompt · soft negative
“Choose Justworks or Rippling if you have fewer than 50 employees, want a modern software interface, and desire transparent flat rates.” Gemini 3.5 Flash · comparative prompt · first choice
“Justworks is widely regarded as the best PEO (Professional Employer Organization) option for companies with a limited budget” Grok 4.20 · budget prompt · first choice
“Choose Justworks if you are a startup or small business wanting transparent pricing and a clean interface.” Qwen 3.7 Flash · comparative prompt · first choice
What the models said about Paychex PEO
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Many others (e.g., TriNet, ADP TotalSource, Insperity, Paychex) require custom quotes” Grok 4.20 · budget prompt · soft negative
“quote by % of payroll or custom pricing and typically start at 2-6% of payroll” Muse Glimmer 30B · budget prompt · soft negative
“Paychex: 5.2/10 ... worth extra due diligence” Kimi K2 · negative prompt · soft negative
“ADP TotalSource and Paychex PEO are the most commonly recommended mainstream picks” Muse Glimmer 30B · direct prompt · first choice
“Worth comparing if you want a customizable PEO or may need broader payroll options, though pricing generally requires a quote.” Perplexity Sonar · budget prompt · alternative
“Customizable services, remote compliance across all 50 states, lower-cost coverage | Midsize businesses” Kimi K2 · direct 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.