Tool-Use Reliability in 2026: What pass^k on tau-bench Tells Us
Even GPT-4o pass-rate drops below 25% under pass^8 on tau-bench retail. Reliability, not capability, is the production bottleneck for tool-using agents.
Agentic AI, LLM engineering, and the models behind modern automation — multi-agent systems, LLM evaluation and comparisons, RAG, fine-tuning, AI infrastructure, security, and production AI engineering.
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Even GPT-4o pass-rate drops below 25% under pass^8 on tau-bench retail. Reliability, not capability, is the production bottleneck for tool-using agents.
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