# PEO providers: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "PEO" and as "professional employer organization", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Added to the November 2026 Edition. Page: https://www.gane.ai/index/hr/core/peo-providers/2026-11

**Standing:** ADP TotalSource leads with 37% of first choices; verdict contested. 46 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [ADP TotalSource](https://www.gane.ai/index/hr/vendors/adp-totalsource/index.md) | 37% | 16% | 50 |
| 2 | [Justworks](https://www.gane.ai/index/hr/vendors/justworks/index.md) | 28% | 7% | 43 |
| 3 | [TriNet](https://www.gane.ai/index/hr/vendors/trinet/index.md) | 13% | 11% | 53 |
| 4 | [Rippling](https://www.gane.ai/index/hr/vendors/rippling/index.md) | 11% | 5% | 39 |
| 5 | [Insperity](https://www.gane.ai/index/hr/vendors/insperity/index.md) | 7% | 16% | 44 |
| 6 | [Paychex PEO](https://www.gane.ai/index/hr/vendors/paychex-peo/index.md) | 2% | 11% | 36 |
| 8 | [Deel PEO](https://www.gane.ai/index/hr/vendors/deel-peo/index.md) | 0% | 0% | 11 |

Rank is by share of first choices among all 63 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: ADP TotalSource; alternatives Engage PEO, Insperity, TriNet
- GPT-5.4 mini: ADP TotalSource; alternatives Justworks, TriNet
- Gemini 3.5 Flash: Rippling; alternatives ADP TotalSource, Insperity, TriNet
- Perplexity Sonar: ADP TotalSource; alternatives Deel PEO, Rippling, TriNet
- Grok 4.20: Justworks; alternatives ADP TotalSource, Rippling, TriNet
- Mistral Small: ADP TotalSource, TriNet; alternatives Insperity, Rippling
- DeepSeek V4 Flash: ADP TotalSource; alternatives Insperity, Rippling, TriNet
- Llama 4 Maverick: Rippling; alternatives ADP TotalSource, Paychex PEO, TriNet
- Qwen 3.7 Flash: ADP TotalSource; alternatives Insperity, Rippling, TriNet
- Kimi K2: ADP TotalSource; alternatives Insperity, Paychex PEO, Rippling, TriNet
- GLM 4.7 FlashX: ADP TotalSource; alternatives Paychex PEO, Rippling, TriNet
- MiniMax M2.5: ADP TotalSource; alternatives Insperity, Paychex PEO, Rippling, TriNet
- GPT-6 Luna: ADP TotalSource; alternatives Insperity, TriNet
- Muse Glimmer 30B: ADP TotalSource, Paychex PEO; alternatives Insperity, TriNet

## Sources the answers cite

74 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- forbes.com: 28 answers, 28 citations
- leadchangegroup.com: 27 answers, 38 citations
- techrepublic.com: 22 answers, 22 citations
- peo-marketplace.com: 21 answers, 29 citations
- adp.com: 20 answers, 29 citations
- peometrics.com: 19 answers, 30 citations
- eorhq.com: 17 answers, 18 citations
- peoconsultingpartners.com: 14 answers, 18 citations

Pages named in the most answers:

- https://forbes.com/advisor/business/software/best-peo-services (28 answers)
- https://techrepublic.com/article/best-peo-companies (22 answers)
- https://eorhq.com/guides/best-peo-companies (16 answers)
- https://b2breviews.com/peo-companies (14 answers)
- https://leadchangegroup.com/peo-services/mid-market (14 answers)
- https://peo-marketplace.com/solutions/mid-market (9 answers)
- https://blog.axcethr.com/peo-companies (8 answers)
- https://business.com/categories/best-peo-services (8 answers)
- https://leadchangegroup.com/peo-services/compare (8 answers)
- https://onfolio.com/reviewed/best-peo-for-small-business (8 answers)

## Warned against

- ADP TotalSource: 8 of 50 labels negative. "cite serious issues such as failure to submit employment taxes and state reports... Many former clients recommend switching to alternatives" (Grok 4.20, negative prompt)
- TriNet: 6 of 53 labels negative. "56 BBB complaints in recent years" (MiniMax M2.5, negative prompt)
- Insperity: 7 of 44 labels negative. "Large enterprise-focused PEOs (like ADP TotalSource or Insperity) often require custom quotes and long contracts" (Qwen 3.7 Flash, budget prompt)
- Paychex PEO: 4 of 36 labels negative. "Many others (e.g., TriNet, ADP TotalSource, Insperity, Paychex) require custom quotes" (Grok 4.20, budget prompt)

## Movement since October 2026

Floor: 13 points of share, measured on the calibration repeat.
New leader: Justworks (24%) to ADP TotalSource (37%). Margin 9 points, within noise.

- ADP TotalSource: 22% to 37%, +15. Cleared the floor by 2 points · rank 2 → 1 of 63.
- Paychex PEO: 16% to 2%, −14. Cleared the floor by 1 point · rank 3 → 6 of 63.
- Justworks: 24% to 28%, +4. Inside the floor by 9 points · rank 1 → 2 of 63.
- TriNet: 14% to 13%, −1. Inside the floor by 12 points · rank 4 → 3 of 63.
- Rippling: 10% to 11%, +1. Inside the floor by 12 points · rank 5 → 4 of 63.
- Insperity: 6% to 7%, +1. Inside the floor by 12 points · rank 6 → 5 of 63.
- Deel PEO: 0% to 0%, ±0. Inside the floor by 13 points · rank 11 → 8 of 63.
- Gusto: 0% to 0%, ±0. Inside the floor by 13 points · rank 12 of 63, unchanged.

## Record

- Method: https://www.gane.ai/index/hr/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/hr.