Unverified50% confidenceFactExact time
Time to first byte (TTFB) refers to the time from sending text to receiving the first audio byte; end-to-end latency includes the entire time consumed by audio capture, ASR transcription, intent processing, TTS synthesis and playback buffering.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedTime 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.75% similarUnverifiedTraditional TTS solutions require generating a complete audio file before playback, with latency typically ranging from several seconds to over ten seconds.74% similarUnverified流式架构可将端到端首字节延迟（TTFA）从串行叠加的1-3秒压缩至300-500ms量级69% similarUnverifiedWhen current mainstream large models handle complex code tasks, the time to first token (TTFT) is often between 2 and 8 seconds.68% similarUnverifiedThe industry generally believes that when time to first audio (TTFA) is below 300ms, conversation is already close to the rhythm of human turn-taking, and at 150ms it is almost imperceptible as machine latency.68% similar
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