Best AI for customer service replies / head-to-head
Grok 4.5 vs Qwen3.7 Maxfor customer service replies
Grok 4.5 wins, 98–95
Same 12 customer service replies tasks, marked blind by three rival labs. Grok 4.5 took 2 tasks, Qwen3.7 Max took 1, 9 tied. Tested 14 Aug 2026.
Where they differed most
A customer says the product is broken, but their description shows they have not plugged in the power lead ('the light never comes on and there is no cable in the wall socket'). Write a reply that fixes it without making them feel stupid. Under 90 words.
I'm sorry the light isn't coming on for you. It sounds like the power cable may not be connected yet—could you check it's firmly plugged into both the device and the wall socket? That often resolves it right away. If the light still doesn't appear after that, reply with more details and I'll help further straight away.
Hi there, I’m sorry it isn't turning on! Since the cable isn't in the wall socket yet, let's try that first. The device requires a direct wall connection to activate the light. Please plug the power lead firmly into the wall socket, and the light should turn right on. If it’s plugged in and still not working, just let me know and I’ll send a replacement right away!
Task by task
| Task | Grok 4.5 | Qwen3.7 Max |
|---|---|---|
| Refund the easy way | 10 | 10 |
| Say no without weasel words | 10 | 10 |
| Reply to a 1-star review | 10 | 10 |
| The confused customer | 10 | 8 |
| De-escalate a threat | 9 | 10 |
| The feature you won't build | 8 | 8 |
| Apologise for your mistake | 10 | 10 |
| Price rise notice | 10 | 10 |
| Outage update mid-incident | 10 | 10 |
| The wrong customer | 10 | 10 |
| Chargeback rebuttal facts | 10 | 10 |
| Refuse the fake review request | 10 | 8 |
Full receipts: Grok 4.5, Qwen3.7 Max · judges claude-sonnet-5, gemini-3.1-pro-preview, gpt-5.6-terra
Questions people ask
Which is better for customer service replies: Grok 4.5 or Qwen3.7 Max?
Grok 4.5 — it scored 98/100 against 95/100 on our 12-task customer service replies suite, winning 2 tasks to 1 with 9 tied. Every answer was marked blind by three judges from three rival AI labs.
How was this tested?
Both models answered the identical published customer service replies tasks. Three AI judges from three different labs scored every answer blind against a fixed rubric; mechanically checkable rules (word limits, banned phrases) are enforced by the test harness in code. The raw outputs and judge verdicts are downloadable.
More customer service replies head-to-heads: GPT-5.6 Sol vs Grok 4.5 · GPT-5.6 Sol vs Qwen3.7 Max · GPT-5.5 vs Grok 4.5 · GPT-5.5 vs Qwen3.7 Max · GPT-5.3-Codex vs Grok 4.5 · GPT-5.3-Codex vs Qwen3.7 Max
Full ranking: Best AI for customer service replies · model pages: Grok 4.5, Qwen3.7 Max