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Is Claude Fable 5 good at Customer Support?

Claude Fable 5 ranks #1 of 113 for Customer Support — excellent.

Best result with high reasoning effort.

#1 / 113
Rank for this task
90.2
Score
$0.0438
Cost / run

Claude Fable 5 on each Customer Support sub-task

Resolution 100.0/100 #9
De-escalation 99.0/100 #7
Policy Boundaries 99.0/100 #2
Help Content Test 91.8/100 #2
Policy Boundary Test 91.0/100 #18
Escalation and Incident Test 90.0/100 #15
Basic Support Reply Test 85.2/100 #1
Escalation & Handoff 71.0/100 #39

Real examples, graded

WinMulti-issue ticket 85/100

“The response perfectly executes the multi-issue ticket scenario, separating the concerns clearly and providing a highly organized summary table. It avoids inventing facts while maintaining a professional tone and safe risk handling (e.g., asking only for the last 4 digits of the card). It is as specific as possible given the lack of concrete customer details in the prompt.”

WinChurn rescue 95/100

“The response is exceptionally well-crafted, weaving the provided facts naturally into an empathetic and professional churn rescue email. It follows all constraints perfectly and demonstrates expert-level customer success writing. A very minor improvement would be including a clear placeholder for the checklist link or attachment.”

WinAngry billing complaint 95/100

“The response is excellent, production-ready, and hits every constraint perfectly. It de-escalates effectively, asks for the exact required information while proactively preventing a security risk (asking not to send the full card number), sets the correct timeline expectation, and avoids promising a refund.”

← Full Claude Fable 5 review All Customer Support rankings →

Frequently asked

Is Claude Fable 5 good at Customer Support?

Claude Fable 5 ranks #1 of 113 models we tested for Customer Support, scoring excellent.

What is Claude Fable 5's strongest Customer Support skill?

Its best sub-task here is Resolution.

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Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s