# Lattice vs 15Five: which do AI models recommend for employee engagement surv, September 2026

HR AI Recommendation Index, September 2026 Edition, Employee engagement surveys. Three of twelve models named Lattice first on the direct prompt; zero named 15Five. Page: https://hr-ai-index.com/experience/employee-engagement-surveys/lattice-vs-15five/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Lattice | 10% | #4 of 8 | 3% | 36 | 12 of 12 |
| 15Five | 6% | #5 of 8 | 0% | 37 | 12 of 12 |

## The direct prompt, model by model

- Claude Haiku 4.5: lattice first (first choices: Lattice) (alternatives: 15Five, Culture Amp, Workleap Officevibe)
- Gemini 3.5 Flash: lattice first (first choices: Culture Amp, Lattice) (alternatives: 15Five, Leapsome)
- DeepSeek V4 Flash: lattice first (first choices: Lattice) (alternatives: 15Five, Culture Amp, Quantum Workplace)
- Perplexity Sonar: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Lattice, Workleap Officevibe)
- Grok 4.1 Fast: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Lattice)
- Mistral Small: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Lattice, Quantum Workplace, Workleap Officevibe)
- Llama 4 Maverick: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Lattice, Quantum Workplace)
- Qwen 3.7 Flash: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Lattice, Workleap Officevibe)
- Kimi K2: neither first, one named (first choices: Culture Amp) (alternatives: Lattice, Workleap Officevibe)
- GLM 4.7 FlashX: neither first, one named (first choices: Culture Amp) (alternatives: 15Five, Engagedly, Lattice, Leapsome, Quantum Workplace, Workvivo)
- MiniMax M2.5: neither first, one named (first choices: Culture Amp, Matter) (alternatives: 15Five, Lattice, ThriveSparrow)
- GPT-5.4 mini: neither named (first choices: Culture Amp) (alternatives: Qualtrics EmployeeXM, WorkTango)

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.