Justworks vs Insperity
Zero of fourteen models named Justworks first on the direct prompt; two named Insperity. Justworks was named by thirteen of the fourteen models and Insperity by twelve and Justworks carries 38 labels and Insperity 35, 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 modelsInsperity
Across every category in the October 2026 Edition, Justworks and Insperity were named in the same answer sixty times, of the 295 answers naming Justworks and the 105 naming Insperity. In those answers Insperity took the first choice two times and Justworks twenty-three.
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 Insperity first choice named as an alternative argued againstblank: not namedEach cell is one answer, Justworks on the left and Insperity on the right.The direct prompt
Insperity first, Justworks an alternative
2 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
7 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
5 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 8Insperity2%#6 of 8Justworks24%#1 of 9Insperity6%#6 of 9What 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 Insperity
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Avoid or approach with extreme caution: Any PEO without ESAC accreditation or IRS CPEO certification” Kimi K2 · negative prompt · hard negative
“Insperity: Frustrations with slow support, unauthorized deductions, billing disputes, withholding records—mixed but recurring in DesignRush/BBB.” Grok 4.1 Fast · negative prompt · soft negative
“Insperity is more expensive on the administrative side, with an average price of around $220 per employee per month” Claude Haiku 4.5 · comparative prompt · soft negative
“the most practical default choice is often Insperity if you want strategic HR support” Perplexity Sonar · direct prompt · first choice
“Peometrics/PEO Consulting: Insperity for mid-market HR; ADP for scale.” Grok 4.1 Fast · direct prompt · first choice
“Top Recommendation: Insperity” DeepSeek V4 Flash · paraphrase 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.