tool-use-reliability-in-customer-support-gpt-4o CLM-0171
observationsingle paperReviewed by AI and Russ Miller

In simulated retail customer-support tasks with real tools and policy documents, GPT-4o — the best performer in the study — still completed well under two-thirds of tasks correctly, and its rate of passing the identical task eight times in a row (a proxy for production reliability) was far lower than its single-attempt success rate.

Capability: Using the tools it is given

Observed on

GPT. 2024, GPT-4o. Customer support.

Model cards: GPT-4 · GPT-4o

Sources

Reviewed by AI and Russ MillerLast checked: 2026-09-03Evidence activityHow much the field cites the sources under this claimvery heavily cited in the last 12 months889 in 12mo · 1075 total — τ-bench: A Benchmark for Tool-Agent-User Interaction in Real-World Domains
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