Chat SDK 现已支持对话历史

Vercel News

Vercel News2026年5月8日

Chat SDK Now Supports Conversation History

8.5Score

TL;DR · AI Summary

Vercel's Chat SDK now enables cross-platform conversation history via `transcripts` and `identity` options.

Key Takeaways

Chat SDK supports `transcripts` and `identity` options for persistent cross-plat
Users retain message history across platforms like Web and Mobile when interacti
The feature requires only a simple config enablement—no additional backend work

Outline

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§Feature Release Context
Vercel announced on May 8, 2026, that its Chat SDK now supports cross-platform conversation history.
·Core Function Mechanism
New `transcripts` and `identity` options allow system to persist user message history across platforms.
›Technical Implementation
Platform adapters unify user identity and transcript management for shared context persistence.
·Developer Integration
Developers can enable the feature by setting `transcripts: true` and providing an `identity` during SDK initialization.
›Use Case Example
Users can seamlessly continue conversations across web and mobile apps without losing context.

Mindmap

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查看大纲文本（无障碍 / 无 JS 友好）

Vercel Chat SDK 跨平台对话历史支持
- 核心功能
  - `transcripts` 选项启用历史记录
  - `identity` 选项绑定用户身份
- 技术实现
  - 平台适配器统一管理上下文
  - 分布式存储对话转录
- 应用场景
  - Web 与 Mobile 多端同步
  - AI 客服上下文延续

Highlights

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Users retain their chat history across platforms—no need to re-establish context when switching devices.
— Paragraph 2
⬇︎ 下载 PNG 𝕏 分享到 X
Using `transcripts` and `identity`, the SDK ensures persistent conversation history across all platforms.
— Paragraph 2
⬇︎ 下载 PNG 𝕏 分享到 X
No extra backend development required—this feature is ready-to-use out of the box for multi-platform deployment.
— Paragraph 2
⬇︎ 下载 PNG 𝕏 分享到 X

#Chat SDK#AI Bot#Vercel#conversation history#cross-platform

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Chat SDK Now Supports Conversation History - Vercel

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Blog/Changelog

Chat SDK Now Supports Conversation History

![Image 1 Ben Sabic Content Engineer](https://twitter.com/bensabic)![Image 2 Josh Singh Software Engineer](https://twitter.com/nishimiya)

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May 8, 2026

The Chat SDK now supports cross-platform conversation history through the new transcripts and identity options. User transcripts persist across every platform adapter, allowing the same user to maintain their message history regardless of where they interact with your bot.

lib/bot.ts

code

1import { Chat } from "chat";2
3const bot = new Chat({4  userName: "mybot",5  identity: ({ author }) => author.email ?? null,6  transcripts: {7    retention: "30d",8    maxPerUser: 200,9  },10  // ...11});

Identify users by email and retain up to 200 messages per user for 30 days

bot.transcripts exposes four methods, backed by your existing state adapter: