Unverified50% confidenceFactExact time
A Time to First Token (TTFT) below 500ms is generally considered a smooth interactive experience, while exceeding 2 seconds creates a noticeable sense of waiting.
1
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50%
Confidence
Long-term
Relevance
8/31/2026
First Seen
Sources
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Related Claims
UnverifiedWhen current mainstream large models handle complex code tasks, the time to first token (TTFT) is often between 2 and 8 seconds.79% similarUnverifiedIn digital human scenarios, the WebRTC end-to-end latency typically needs to be kept within 500 milliseconds to ensure a natural and smooth interactive experience.77% similarUnverified中心化API（如OpenAI）的首Token延迟（TTFT）通常在200-500毫秒之间77% similarUnverifiedThe time-to-first-byte for cloud TTS services is typically 200–500 milliseconds, making it the primary source of latency bottlenecks.76% similar
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