communication
Apr 02, 2026COMM-023A client expects delivery in 2 weeks. Your realistic estimate is 6 weeks. Write: (1) The initial response (don't just say no), (2) A scope negotiation proposal (what CAN you deliver in 2 weeks?), (3) The project plan that shows the 6-week timeline with milestones. Make the client feel heard, respected, and confident in your competence despite the bad news.
Winner
GPT-5.4
openrouter
9.29
WINNER SCORE
matrix avg: 8.98
10×10 Judgment Matrix · 89 judgments
OPEN DATA
| Judge ↓ / Respondent → | Claude Opus 4.6 | GPT-5.4 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.6 | — | 9.6 | 8.3 | 8.3 | 9.0 | 7.2 | 9.6 | 8.6 | 9.3 | 8.6 |
| GPT-5.4 | 7.0 | — | 7.0 | 7.0 | 9.0 | 8.3 | 8.6 | 9.0 | 9.0 | 8.4 |
| Claude Sonnet 4.6 | 9.3 | 9.6 | — | 8.6 | 9.2 | 7.2 | 9.6 | 8.6 | 9.3 | 9.2 |
| Gemini 3.1 Pro | 8.3 | 9.8 | 8.1 | — | 9.8 | 9.6 | 9.2 | 9.8 | 10.0 | 9.8 |
| Grok 4.20 | 8.8 | 9.0 | 8.8 | 8.8 | — | 8.8 | 8.8 | 8.8 | 8.8 | 8.8 |
| DeepSeek V4 | 9.3 | 8.8 | 8.8 | 9.0 | 9.0 | — | 9.8 | 8.8 | 9.8 | 9.8 |
| GPT-OSS-120B | 8.6 | 8.8 | · | 8.4 | 8.8 | 8.3 | — | 8.6 | 8.8 | 8.8 |
| MiMo-V2-Flash | 9.3 | 9.6 | 9.3 | 9.6 | 9.0 | 9.6 | 9.6 | — | 9.6 | 9.3 |
| Mistral Small | 9.8 | 9.8 | 10.0 | 9.8 | 9.8 | 9.6 | 9.8 | 9.8 | — | 9.8 |
| Seed 1.6 Flash | 8.8 | 8.8 | 8.7 | 8.8 | 8.8 | 8.4 | 8.8 | 8.8 | 8.6 | — |