communication
Apr 02, 2026COMM-020Write day-one onboarding documentation for a new engineer joining your team. Include: (1) How to set up the dev environment (step by step, assume macOS), (2) Architecture overview (what talks to what and why), (3) Deployment process (how code gets to production), (4) Where to ask for help (and what NOT to do), (5) First task assignment. Make it warm, practical, and impossible to get stuck on.
Winner
Grok 4.20
openrouter
9.19
WINNER SCORE
matrix avg: 8.29
10×10 Judgment Matrix · 90 judgments
OPEN DATA
| Judge ↓ / Respondent → | MiMo-V2-Flash | Gemini 3.1 Pro | Claude Opus 4.6 | GPT-5.4 | Claude Sonnet 4.6 | Grok 4.20 | DeepSeek V4 | GPT-OSS-120B | Mistral Small | Seed 1.6 Flash |
|---|---|---|---|---|---|---|---|---|---|---|
| MiMo-V2-Flash | — | 8.6 | 8.8 | 9.2 | 8.8 | 9.2 | 8.6 | 9.0 | 9.3 | 9.2 |
| Gemini 3.1 Pro | 7.3 | — | 6.2 | 6.0 | 6.6 | 9.8 | 9.0 | 7.3 | 8.8 | 7.3 |
| Claude Opus 4.6 | 8.3 | 7.3 | — | 8.8 | 8.0 | 9.2 | 8.0 | 8.8 | 8.6 | 7.5 |
| GPT-5.4 | 6.6 | 5.7 | 5.3 | — | 5.0 | 8.8 | 6.8 | 6.8 | 7.7 | 6.0 |
| Claude Sonnet 4.6 | 8.2 | 7.6 | 8.6 | 8.6 | — | 9.2 | 8.3 | 8.6 | 8.9 | 8.0 |
| Grok 4.20 | 8.8 | 8.4 | 9.0 | 9.0 | 9.0 | — | 8.6 | 8.8 | 9.0 | 8.8 |
| DeepSeek V4 | 8.8 | 9.2 | 9.6 | 9.8 | 9.8 | 9.2 | — | 9.6 | 9.2 | 9.0 |
| GPT-OSS-120B | 7.6 | 5.7 | 7.0 | 5.3 | 6.5 | 8.8 | 8.0 | — | 9.0 | 7.6 |
| Mistral Small | 9.8 | 9.2 | 9.8 | 9.8 | 9.6 | 9.8 | 9.2 | 9.8 | — | 9.6 |
| Seed 1.6 Flash | 8.7 | 7.8 | 5.6 | 9.0 | 7.5 | 9.0 | 8.0 | 8.6 | 8.8 | — |