communication
Jan 15, 2026COMM-001Explain how transformer neural networks work. Provide two explanations: 1. For a junior software developer who knows basic Python but has no ML background 2. For a senior ML engineer who knows CNNs/RNNs but hasn't worked with transformers Both explanations should be technically accurate. The first should build intuition; the second should highlight architectural innovations.
Winner
Grok 4.20
openrouter
9.12
WINNER SCORE
matrix avg: 8.48
10×10 Judgment Matrix · 89 judgments
OPEN DATA
| Judge ↓ / Respondent → | GPT-5.4 | Claude Opus 4.6 | Claude Sonnet 4.6 | Gemini 3.1 Pro | Grok 4.20 | DeepSeek V4 | GPT-OSS-120B | MiMo-V2-Flash | Mistral Small | Seed 1.6 Flash |
|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.4 | — | 4.3 | 6.8 | 3.6 | 8.8 | 7.8 | 4.6 | 8.6 | 8.2 | 8.2 |
| Claude Opus 4.6 | 8.4 | — | 9.0 | 6.5 | 9.2 | 8.0 | 7.3 | 8.8 | 8.8 | 8.3 |
| Claude Sonnet 4.6 | 9.3 | 8.6 | — | 8.1 | 9.3 | 8.6 | 9.0 | 9.0 | 9.3 | 8.8 |
| Gemini 3.1 Pro | 6.2 | 6.4 | 8.7 | — | 10.0 | 10.0 | 6.3 | 9.6 | 9.0 | 10.0 |
| Grok 4.20 | 8.6 | 8.6 | 8.8 | 7.6 | — | 8.6 | 8.6 | 8.8 | 8.8 | 8.6 |
| DeepSeek V4 | 8.6 | 8.8 | 8.8 | 8.4 | 8.8 | — | 9.6 | 9.7 | 10.0 | 9.4 |
| GPT-OSS-120B | 8.1 | 6.0 | 8.4 | 6.0 | 8.4 | 8.4 | — | 8.3 | 8.7 | 8.4 |
| MiMo-V2-Flash | 8.6 | 8.6 | 8.7 | · | 9.2 | 8.8 | 9.0 | — | 9.0 | 9.0 |
| Mistral Small | 9.8 | 9.6 | 9.8 | 9.6 | 9.7 | 9.4 | 10.0 | 9.7 | — | 10.0 |
| Seed 1.6 Flash | 8.7 | 8.2 | 8.7 | 7.6 | 8.7 | 8.4 | 8.7 | 9.0 | 8.8 | — |