LINE Yahoo rolls out AI schedule-coordination agent inside LINE app
In short
LINE Yahoo has launched a feature called 日程調整エージェント (schedule-adjustment agent) that uses AI to help users arrange plans with friends in LINE chat rooms. It can draft date polls, propose candidate dates, answer availability on a user's behalf using LINE Calendar, and suggest a final date. The feature is available through LINE Lab, a channel for trying pre-release functions.
Why it matters
LINE is a widely used messaging app in Japan, so putting an AI agent into routine plan-making touches an everyday task rather than a niche one. LINE Yahoo positions the function as one part of the “Agent i” initiative it announced in April 2026, making it a concrete example of how that effort is reaching users. Access through LINE Lab means only users who opt in can try it for now, according to the documents.
Key facts
- LINE Yahoo launched the AI feature 日程調整エージェント in the LINE app. [ 1 , 2 , 3 ]
- The feature is available through LINE Lab, where users can turn it on. [ 1 , 3 ]
- In a chat room, users call up 日程調整 and describe the plan they want to arrange, and the AI proposes a title and candidate dates. [ 1 , 3 ]
- Participants can answer per candidate date, with Keitai Watch describing ○, △ and × responses. [ 2 , 3 ]
- An “AIにおまかせ” option answers on the user's behalf based on LINE Calendar entries. [ 1 , 3 ]
- The AI sends a reminder to the chat room 24 hours before the response deadline. [ 1 , 3 ]
- If no date works for everyone, the AI proposes an individual change of date to participants. [ 1 , 3 ]
- The feature was developed as part of the “Agent i” initiative announced in April 2026. [ 1 , 3 ]
- A decided plan can be registered in LINE Calendar. [ 1 , 3 ]
Confirmed by several sources
- LINE Yahoo launched the 日程調整エージェント AI feature in the LINE app. [ 1 , 2 , 3 ]
- The feature is reached from LINE Lab and switched on there. [ 1 , 3 ]
- The AI handles creating the schedule poll, proposing candidate dates, giving availability answers and making individual adjustments with participants. [ 1 , 2 , 3 ]
- Participants answer per candidate date, and an “AIにおまかせ” option produces answers based on LINE Calendar entries. [ 1 , 3 ]
- The feature was developed as one part of the “Agent i” initiative. [ 1 , 3 ]
Still unclear
- Whether the feature is available to all LINE users or only in a limited rollout. The documents say it is used from LINE Lab and switched on there, but give no figures on eligibility, region or user numbers.
- The exact date and time the feature became available. The documents carry publication times on 2026-10-05 but do not state a launch time or date beyond that.
- Any cost or pricing for the feature. No document mentions price.