SemiAnalysis 发文指出,大模型推理中常被引用的“首 token 延迟”(TTFT, time-to-first-token)可能被市场过度关注,推理系统核心在“单用户交互速度(tok/s/user)”与“整体吞吐效率(tok/s/GPU)”之间权衡。
据Odaily星球日报报道,在多数场景中,TTFT 对体验影响有限,生成阶段的 Token 速度是关键变量;仅约 10%–20%的推理任务真正受限于延迟,其余场景更依赖吞吐与成本效率优化。
AI趋势 | SemiAnalysis:TTFT或被过度关注
2026-07-06 14:14:13
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