Quality vs speed for your support stack. We compare Claude Sonnet 4.5 and Gemini 3 Flash on the five dimensions that define great customer support AI.
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Task-specific scoring for customer support workloads across 5 dimensions.
| Dimension | Claude Sonnet 4.5 | Gemini 3 Flash | Edge |
|---|---|---|---|
| Empathy & Tone | Professional, measured tone that acknowledges frustration without over-promising. Excellent at de-escalation. | Adequate but can feel mechanical. Less natural at expressing empathy in difficult conversations. | |
| Issue Resolution | Thorough root-cause diagnosis. Better at resolving complex, multi-step issues on the first interaction. | Fast resolution of common issues. Less effective on novel problems that require creative troubleshooting. | |
| Escalation Detection | Nuanced detection of frustration signals including passive cues. Recommends human handoff appropriately. | Basic escalation detection. May require more explicit frustration signals to trigger escalation. | |
| Knowledge Accuracy | Cautious about uncertain information. More likely to say 'let me check' than hallucinate an answer. | Strong factual retrieval. Google's knowledge graph integration helps with product information. | tie |
| Response Speed | Moderate speed. Responses are thorough but not as fast as lighter models. | Fastest time-to-first-token of any frontier model. Ideal for live chat where every millisecond matters. |
Pick Claude Sonnet 4.5 for complex B2B support, sensitive conversations, VIP customer tiers, and any support channel where first-contact resolution rate is the key metric.
Pick Gemini 3 Flash for high-volume consumer chat, multilingual support, FAQ bots, and support flows where speed and cost-per-ticket matter more than nuanced empathy.
Claude Sonnet 4.5 delivers better support quality with superior empathy, resolution, and escalation handling. Gemini 3 Flash's speed and multilingual capabilities make it compelling for high-volume consumer support, especially in multilingual markets.
Use LLMWise Compare mode to test Claude Sonnet 4.5 vs Gemini 3 Flash on your own customer support prompts.
You only pay credits per request. No monthly subscription. Paid credits never expire.
Replace multiple AI subscriptions with one wallet that includes routing, failover, and optimization.