Best AI for customer service replies / head-to-head
GPT-5.6 Sol vs Qwen3.7 Maxfor customer service replies
GPT-5.6 Sol wins, 100–95
Same 12 customer service replies tasks, marked blind by three rival labs. GPT-5.6 Sol took 3 tasks, Qwen3.7 Max took 0, 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.
Sorry you’re having trouble. It sounds like the product may not be receiving power yet. Please connect the power lead securely to the product, then plug it into a working wall socket and switch the socket on if needed. The indicator light should then come on. If it still doesn’t, try another socket and let us know—we’ll be happy to help.
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 | GPT-5.6 Sol | 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 | 10 | 10 |
| The feature you won't build | 10 | 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: GPT-5.6 Sol, Qwen3.7 Max · judges claude-sonnet-5, gemini-3.1-pro-preview, grok-4.5
Questions people ask
Which is better for customer service replies: GPT-5.6 Sol or Qwen3.7 Max?
GPT-5.6 Sol — it scored 100/100 against 95/100 on our 12-task customer service replies suite, winning 3 tasks to 0 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-5.5 vs GPT-5.6 Sol · GPT-5.3-Codex vs GPT-5.6 Sol · GPT-5.6 Sol vs Grok 4.5 · GPT-5.6 Sol vs GPT-5.6 Terra · Gemini 3.1 Pro Preview vs GPT-5.6 Sol · Claude Opus 4.6 vs GPT-5.6 Sol
Full ranking: Best AI for customer service replies · model pages: GPT-5.6 Sol, Qwen3.7 Max