# The Multivac — Evaluation Report

**Evaluation ID:** EVAL-20260318-162808
**Date:** Mar 18, 2026
**Category:** reasoning
**Question ID:** EVAL-20260318-162808

---

## Question

Hospital A has a higher survival rate than Hospital B for both heart surgery (A: 90%, B: 85%) and knee surgery (A: 95%, B: 92%). But Hospital B has a higher overall survival rate (B: 91%, A: 89%). (1) Construct exact numbers that produce this paradox. (2) Which hospital is actually better? (3) A health insurance company uses overall survival rate to recommend hospitals. What goes wrong? (4) How should the comparison be done correctly?

---

## Winner

**Claude Sonnet 4.6** (openrouter)
- Winner Score: 9.71
- Matrix Average: 8.37
- Total Judgments: 20

---

## Rankings

| Rank | Model | Provider | Avg Score | Judgments |
|------|-------|----------|-----------|----------|
| 1 | Claude Sonnet 4.6 | openrouter | 9.71 | 7 |
| 2 | GPT-5.4 | openrouter | 9.33 | 6 |
| 3 | MiniMax-01 | openrouter | 6.08 | 7 |

---

## 10×10 Judgment Matrix

Rows = Judge, Columns = Respondent. Self-judgments excluded (—).

| Judge ↓ / Resp → | MiniMax M2.7 | MiniMax M2.5 | MiniMax M2.1 | MiniMax M2 | MiniMax M1 | MiniMax-01 | Claude Sonnet | GPT-5.4 |
|---|---|---|---|---|---|---|---|---|
| MiniMax M2.7 | — | · | · | · | · | 6.2 | 10.0 | 9.8 |
| MiniMax M2.5 | · | — | · | · | · | 7.0 | 10.0 | 9.8 |
| MiniMax M2.1 | · | · | — | · | · | 5.0 | 10.0 | · |
| MiniMax M2 | · | · | · | — | · | 6.3 | 10.0 | 9.6 |
| MiniMax M1 | · | · | · | · | — | 7.7 | 10.0 | 9.3 |
| MiniMax-01 | · | · | · | · | · | — | 9.8 | 9.6 |
| Claude Sonnet | · | · | · | · | · | 6.5 | — | 8.0 |
| GPT-5.4 | · | · | · | · | · | 4.0 | 8.2 | — |

---

## Methodology

- **10×10 Blind Peer Matrix:** All models answer the same question, then all models judge all responses.
- **5 Criteria:** Correctness, completeness, clarity, depth, usefulness (each scored 1–10).
- **Self-judgments excluded:** Models do not judge their own responses.
- **Weighted Score:** Composite of all 5 criteria.

---

## Citation

The Multivac (2026). Blind Peer Evaluation: EVAL-20260318-162808. app.themultivac.com

## License

Open data. Free to use, share, and build upon. Please cite The Multivac when using this data.

Download raw JSON: https://app.themultivac.com/api/evaluations/EVAL-20260318-162808/results
Full dataset: https://app.themultivac.com/dashboard/export