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    Tag: System Latency

    Sep 21
    18 min read
    Time-to-First-Action (TTFA): Benchmarking Latency from User Prompt to First External API Request

    In the performance profiling of interactive web applications and user-facing conversational chatbots, the industry standard for latency measurement has long been Time-to-First-Token (TTFT). For a chatbot, rendering visual tokens on a screen within 400 to 800 milliseconds creates an illusion of instantaneous responsiveness. The human user begins reading, perceived responsiveness is satisfied, and the underlying […]