Time to First Token (TTFT)

goML
Latency metric measuring time from user input to when AI model starts generating its first response token.
ChatGPT Definition (GPT-4o)
Time to First Token (TTFT) is the latency between sending a prompt to a language model and receiving the first generated token in response, measuring the model's responsiveness and speed.
Gemini (2.0)
Time to First Token (TTFT) is a performance metric measuring the duration from when a user submits a prompt to a language model until the model generates the very first part of its output.
Claude (3.7)
The time it takes for an AI language model to produce the first output token after receiving an input prompt, measuring initial responsiveness and processing speed for user experience optimization.

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