Unverified50% confidenceFactExact time
P99 tail latency refers to the value corresponding to the 99th percentile after sorting all request response times from smallest to largest, and in Agent multi-turn session scenarios its impact on the stability of user experience is often greater than that of median TTFT.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
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