Token 流式模拟器:演示大模型输出的正确姿势

大模型不是"一句话瞬间出完",而是逐 token 流式输出——一个字接一个字地"打字"。这个工具把真实的大模型流式行为搬进浏览器,让你以可控的方式模拟:自定义 1–5000 tok/s 的输出速度,实时渲染 Markdown,还能模拟网络抖动和批处理调度。

什么场景下用它

  • 做演示:给团队或客户展示大模型应用效果,用稳定的流式输出代替真实 API,不怕网络波动、不花 token 费用。
  • 录屏教学:讲解流式输出的机制时,用时间轴精确控制输出节奏,每一步都看得清清楚楚。
  • 对比速度感知:同样一段文本,用 10 tok/s 和 500 tok/s 各跑一遍,直观感受"慢"与"快"对阅读体验的影响。

怎么用

在左侧输入或粘贴任意文本(支持 Markdown),选择目标速度,点击开始即可看到逐 token 流式输出。你可以随时暂停、继续,或点开设置调整更细的调度参数。

Token Stream Simulator: the right way to demo LLM output

Large language models don't output a full sentence in one shot — they stream token by token, typing one piece at a time. This tool brings that real streaming behaviour into your browser: custom 1–5000 tok/s output speed, live Markdown rendering, plus jitter and batched-scheduling simulation.

When to use it

  • Demos: show an LLM product to a team or client with stable simulated output — no API latency, no token cost.
  • Teaching & screen recordings: control output timing precisely with the timeline so every step is visible.
  • Speed perception: run the same text at 10 tok/s vs 500 tok/s to feel how speed changes the reading experience.

How to use it

Paste any text (Markdown supported), pick a target speed, hit start, and watch token-by-token streaming. Pause, resume, or open settings for finer scheduling controls.