# Lenovo Tianxi AI 4.5: What Changed on PC, Phone and Tablet

Lenovo is connecting its AI assistant across devices and work apps, but the useful test is whether a task survives the handoff.

By Paras Madan | 2026-10-31


Lenovo announced Tianxi AI 4.5 on October 30, bringing app connectors, upgraded meeting notes and cross-device access to its PC assistant. The practical change is continuity: work started on a phone should be able to use capabilities on a PC instead of staying inside a separate chat.

## What Tianxi AI 4.5 adds

In its [Lenovo China announcement](https://weibo.com/2183473425/Rp48VFl4y), available through the account's public Weibo feed, Lenovo highlights three changes. Super Mode connects to Feishu and Lenovo Browser. Its AI meeting-notes feature supports questions, automatic knowledge storage and cross-device syncing. Users can also invoke PC Super Mode from another device.

Lenovo says the upgrade supports its AI PCs, tablets, phones and AI hosts. [IT Home reports](https://www.ithome.com/1/020/050.htm) that the PC release arrived on October 30, following the phone version on October 20 and tablet version on October 27. This is a staged rollout reaching the PC, rather than every device receiving the software for the first time on the same day.

## Why the PC handoff matters

A useful cross-device assistant needs more than a shared conversation history. A phone can be convenient for issuing a request, while the relevant files and work applications remain on a computer. Connecting those environments could remove the need to restate the task, find the same documents and restart the work when switching screens.

**The important unit is the task, not the chat.** Meeting notes illustrate the distinction. A summary is useful once. Notes that remain accessible during later work can become context for the next decision, provided the assistant retrieves the right material and respects access permissions.

This makes Tianxi 4.5 most relevant to people already working across Lenovo devices and supported applications. It should not be read as evidence that any phone can control any PC or that every business application is connected.

## What still needs checking

The announcement does not establish task success rates, recovery behaviour or a complete device-by-device compatibility list. It also does not establish a global rollout, developer API or universal pricing terms. Those are separate questions from whether Lenovo has announced the feature.

For a team evaluating the update, a better test than a polished demonstration would be one ordinary workflow: start with a meeting note, request a related action from another device, then check the result on the PC. Can the user see what happened, correct a mistake and understand which account authorised the action?

The next meaningful improvement in cross-device AI will be making those handoffs dependable enough that users stop preparing the same task twice.

I’m Paras. I work at the intersection of AI, engineering and distribution.

I help technical founders turn product updates and complex AI launches into clear stories that developers and founders read and share.

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