Verified90% confidenceFactExact time
Time to First Token (TTFT) refers to the time interval between a user sending a request and the model outputting the first token, and is primarily constrained by the duration of the prefill stage.
7
Sources
90%
Confidence
Long-term
Relevance
8/31/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedWhen current mainstream large models handle complex code tasks, the time to first token (TTFT) is often between 2 and 8 seconds.77% similarUnverified缓存命中时prefill阶段可跳过已缓存部分，TTFT可从数秒压缩至毫秒级77% similarUnverifiedResponse speed involves time to first token (TTFT) and overall throughput.77% similarUnverifiedTPOT (Time Per Output Token) refers to the average time taken to generate each subsequent token, and total response time is roughly equal to TTFT + TPOT × number of output tokens.74% similarVerifiedTPS measurement is typically divided into two phases: Time to First Token (TTFT) and the generation rate (throughput) of subsequent tokens.72% similar
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