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Time To First Token

Time To First Token (TTFT) is the time from a language-model request to the output of its first generated token.

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Time To First Token (TTFT) measures the time between a request to a language model and the output of its first generated token. It includes processing the input prompt and indicates the delay before a response begins.

TTFT differs from token generation rate, which measures how quickly tokens are produced after output starts. Prompt length and the model's processing environment can affect it.

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…s not a new model: it runs on existing Luna weights, with an inference stack tuned for time to first token and structured outputs evaluated in parallel batches.

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Time to first token, or TTFT, measures how long a model takes to begin its reply after receiving a prompt.

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