# Gusto vs SixFifty: which do AI models recommend for HR compliance, September 2026

HR AI Recommendation Index, September 2026 Edition, HR compliance and policy management. Zero of twelve models named Gusto first on the direct prompt; zero named SixFifty. Page: https://hr-ai-index.com/core/hr-compliance-and-policy-management/gusto-vs-sixfifty/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Gusto | 12% | #2 of 11 | 8% | 26 | 12 of 12 |
| SixFifty | 2% | #8 of 11 | 0% | 17 | 11 of 12 |

## The direct prompt, model by model

- GPT-5.4 mini: neither first, one named (first choices: Rippling) (alternatives: ADP SmartCompliance, Mitratech Mineral, SixFifty)
- Gemini 3.5 Flash: neither first, one named (first choices: Rippling) (alternatives: ADP Workforce Now, Deel, Paylocity, SixFifty)
- Grok 4.1 Fast: neither first, one named (first choices: Rippling) (alternatives: ADP Workforce Now, BambooHR, Gusto, Paylocity)
- GLM 4.7 FlashX: neither first, one named (first choices: Rippling) (alternatives: BambooHR, Deel, Gusto, Namely, Paycor, Personio)
- Claude Haiku 4.5: neither named (first choices: Rippling) (alternatives: ADP Workforce Now, BambooHR, Paylocity)
- Perplexity Sonar: neither named (first choices: Rippling) (alternatives: BambooHR, Mitratech Mineral, Paycor, Paylocity)
- Mistral Small: neither named (first choices: Paylocity) (alternatives: ADP Workforce Now, Rippling)
- DeepSeek V4 Flash: neither named (first choices: Rippling) (alternatives: Deel, Paylocity, TriNet)
- Llama 4 Maverick: neither named (first choices: ADP Workforce Now, Paylocity)
- Qwen 3.7 Flash: neither named (first choices: Paycor) (alternatives: ADP Workforce Now, BambooHR, Paylocity, Rippling)
- Kimi K2: neither named (first choices: HiBob, Rippling) (alternatives: Namely)
- MiniMax M2.5: neither named (first choices: Paylocity) (alternatives: Mitratech Mineral, Rippling)

## What the models said about SixFifty

- "Best for Multi-State Compliance & Legal Accuracy: SixFifty" (Gemini 3.5 Flash, paraphrase prompt, first choice)
- "Another strong option is SixFifty, which is highlighted as the top HR compliance solution specifically for small businesses." (Mistral Small, budget prompt, alternative)
- "Compliance-only needs: Consider SixFifty for policy and document compliance without full HRIS costs" (Kimi K2, budget prompt, alternative)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.