Justworks vs ADP TotalSource
Zero of fourteen models named Justworks first on the direct prompt; seven named ADP TotalSource. Justworks was named by thirteen of the fourteen models and ADP TotalSource by fourteen and Justworks carries 38 labels and ADP TotalSource 46, so the shares are not directly comparable.
Named in thirteen categories this edition.
Named in three 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 PEO providers page.
By framing
JustworksFirst choices, of fourteen modelsADP TotalSource
Across every category in the October 2026 Edition, Justworks and ADP TotalSource were named in the same answer eighty-four times, of the 295 answers naming Justworks and the 155 naming ADP TotalSource. In those answers ADP TotalSource took the first choice nineteen times and Justworks thirty-eight.
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 4.1 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 ADP TotalSource first choice named as an alternative argued againstblank: not namedEach cell is one answer, Justworks on the left and ADP TotalSource on the right.The direct prompt
ADP TotalSource first, Justworks an alternative
7 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
3 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
4 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
Justworks70%#1 of 8ADP TotalSource2%#5 of 8Justworks24%#1 of 9ADP TotalSource22%#2 of 9ADP TotalSource62%#1 of 8Justworks2%#6 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 ADP TotalSource
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“ADP TotalSource has a 3.1 Trustpilot score with numerous negative reviews about customer support, and many users claim they faced payroll accuracy issues” Claude Haiku 4.5 · negative prompt · soft negative
“Many legacy PEOs (like ADP TotalSource or CoAdvantage) run on rigid, older software platforms that do not integrate cleanly with modern tools.” Gemini 3.5 Flash · scale prompt · soft negative
“shows mixed reviews, with some customers reporting: Inconsistent service quality - High costs” MiniMax M2.5 · negative prompt · soft negative
“ADP TotalSource is the most frequently recommended first look because of its mid-market focus, Fortune 500 benefit access and structured HR outsourcing.” Muse Glimmer 30B · paraphrase prompt · first choice
“My top recommendation for most mid-market B2B companies: Start with ADP TotalSource if you're over 100 employees and value scalability” DeepSeek V4 Flash · direct prompt · first choice
“Often ranked as the best overall PEO, ADP is praised for its robust payroll processing, extensive benefits, and strong compliance support.” Mistral Small · 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.