# Human Interest vs Guideline: which do AI models recommend for 401(k) providers, October 2026

HR AI Recommendation Index, October 2026 Edition, 401(k) providers. Seven of fourteen models named Human Interest first on the direct prompt; three named Guideline. Page: https://hr-ai-index.com/rewards/401k-providers/human-interest-vs-guideline/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Human Interest | 20% | #1 of 12 | 7% | 42 | 13 of 14 |
| Guideline | 20% | #2 of 12 | 9% | 32 | 11 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: both first (first choices: Guideline, Human Interest) (alternatives: ADP Retirement Services, Charles Schwab, Fidelity Advantage 401, Principal, Vanguard)
- DeepSeek V4 Flash: both first (first choices: Fidelity Investments, Guideline, Human Interest) (alternatives: ADP Retirement Services, Empower Retirement, T. Rowe Price)
- Claude Haiku 4.5: human interest first (first choices: Human Interest) (alternatives: Fidelity Investments, Principal, Vanguard)
- Gemini 3.5 Flash: human interest first (first choices: Human Interest) (alternatives: ADP Retirement Services, Fidelity Investments, Principal Financial Group)
- Perplexity Sonar: human interest first (first choices: ADP Retirement Services, Human Interest) (alternatives: Empower Retirement, Fidelity Advantage 401, John Hancock, Securian Financial)
- GLM 4.7 FlashX: human interest first (first choices: Human Interest) (alternatives: ADP Retirement Services, Fidelity Investments, Vanguard)
- MiniMax M2.5: human interest first (first choices: Human Interest) (alternatives: Empower Retirement, T. Rowe Price)
- Qwen 3.7 Flash: guideline first (first choices: Fidelity Investments, Guideline, Lighthouse Group) (alternatives: Charles Schwab, Vanguard)
- Muse Glimmer 30B: neither first, one named (first choices: Empower Retirement, Fidelity Investments) (alternatives: ADP Retirement Services, Employee Fiduciary, Guideline, Human Interest, Nationwide, Vanguard)
- GPT-5.4 mini: neither named (first choices: ADP Retirement Services) (alternatives: Empower Retirement, Gusto, ShareBuilder 401k)
- Mistral Small: neither named (first choices: Fidelity Advantage 401) (alternatives: ADP Retirement Services, Empower Retirement)
- Llama 4 Maverick: neither named
- Kimi K2: neither named (first choices: Fidelity Investments) (alternatives: ADP Retirement Services, Empower Retirement, T. Rowe Price, Vanguard)
- GPT-6 Luna: neither named (first choices: ADP 401(k) Premier) (alternatives: Empower Retirement, Fidelity Workplace, Principal)

## What the models said about Human Interest

- "slam poor support, payroll delays/errors, and communication issues" (Grok 4.1 Fast, negative prompt, hard negative)
- "Human Interest, Slavic401k, Guideline, and Ubiquity/Online 401(k) in various user reviews or forum posts reporting high costs, poor service" (Perplexity Sonar, negative prompt, soft negative)
- "notable player, but it has historically been more focused on smaller businesses than true mid-market complexity" (GPT-5.4 mini, direct prompt, soft negative)
- "Best Tech-Forward & Automated: Human Interest ... If you use Rippling, Gusto, or BambooHR and want the lowest administrative burden: Go with Human Interest." (Gemini 3.5 Flash, direct prompt, first choice)
- "Human Interest is recommended as the best fit for mid-market employers that want managed 401k administration with structured onboarding and conversion support." (Claude Haiku 4.5, direct prompt, first choice)
- "Human Interest: Best Overall Value & Ease of Use ... go with Human Interest or Guideline" (Gemini 3.5 Flash, budget prompt, first choice)

## What the models said about Guideline

- "BBB customer reviews include stark warnings, e.g.: "Avoid at all costs." "You will never be able to get your money out."" (Muse Glimmer 30B, negative prompt, hard negative)
- "Users call it "crooks" and warn against it." (Grok 4.1 Fast, negative prompt, hard negative)
- "reporting high costs, poor service, or rollover/admin problems" (Perplexity Sonar, negative prompt, soft negative)
- "Guideline is typically the best choice for companies with a limited budget due to its low monthly base fee ($39), no setup costs" (Kimi K2, budget prompt, first choice)
- "Start with Guideline if you prioritize ease, integrations, and scalability—it's frequently top-rated for budget-conscious SMBs." (Grok 4.1 Fast, budget prompt, first choice)
- "Guideline is often the strongest pick because it is explicitly positioned as an affordable, fully automated 401(k)" (Perplexity Sonar, budget prompt, first choice)

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. 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.