

Substack’s new AI tools turn livestreams into promo assets
Jul 9, 2025
Paramark News Desk

Credit: substack.com (edited)
Key Points
Substack introduced AI-powered features to its livestreaming product, enabling automatic creation of highlight clips for YouTube Shorts.
The update simplifies livestreaming workflows by generating promotional assets and allowing co-host invitations via email or SMS.
Substack's expansion into video capabilities includes live video, audio-only streams, and a TikTok-like video feed.
Substack is rolling out new AI-powered features for its livestreaming product, designed to automatically create highlight clips for YouTube Shorts and generate promotional materials, helping creators more easily market their content.
From stream to Shorts: The update’s headline feature helps creators turn their long-form streams into YouTube Shorts. An AI tool now identifies and packages highlight clips from live video recordings, giving creators real-time feedback on which moments are resonating most. Creators can then have the top two clips automatically pushed to their YouTube Shorts channel.
No more busywork: The company is also reducing friction in other parts of the livestreaming workflow. Scheduling a stream now automatically generates promotional assets for social channels, and the update makes collaboration easier by allowing co-hosts to be invited directly via email or SMS, removing a key barrier for guests who aren't on the platform.
Beyond the newsletter: The move marks the latest expansion of Substack’s video capabilities. The platform rolled out live video to all publishers earlier this year, and more recently introduced audio-only livestreams and a scrollable, TikTok-like video feed.
The bottom line: These tools move beyond just content creation, equipping creators to compete for audience attention in an economy dominated by short-form video. The new features are part of a broader investment in a video production suite for creators. The company has also emphasized that creator collaborations are a powerful growth strategy, a key context for its new, more flexible co-hosting tools.
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Substack’s new AI tools turn livestreams into promo assets
Jul 9, 2025
Paramark News Desk

Credit: substack.com (edited)
Key Points
Substack introduced AI-powered features to its livestreaming product, enabling automatic creation of highlight clips for YouTube Shorts.
The update simplifies livestreaming workflows by generating promotional assets and allowing co-host invitations via email or SMS.
Substack's expansion into video capabilities includes live video, audio-only streams, and a TikTok-like video feed.
Substack is rolling out new AI-powered features for its livestreaming product, designed to automatically create highlight clips for YouTube Shorts and generate promotional materials, helping creators more easily market their content.
From stream to Shorts: The update’s headline feature helps creators turn their long-form streams into YouTube Shorts. An AI tool now identifies and packages highlight clips from live video recordings, giving creators real-time feedback on which moments are resonating most. Creators can then have the top two clips automatically pushed to their YouTube Shorts channel.
No more busywork: The company is also reducing friction in other parts of the livestreaming workflow. Scheduling a stream now automatically generates promotional assets for social channels, and the update makes collaboration easier by allowing co-hosts to be invited directly via email or SMS, removing a key barrier for guests who aren't on the platform.
Beyond the newsletter: The move marks the latest expansion of Substack’s video capabilities. The platform rolled out live video to all publishers earlier this year, and more recently introduced audio-only livestreams and a scrollable, TikTok-like video feed.
The bottom line: These tools move beyond just content creation, equipping creators to compete for audience attention in an economy dominated by short-form video. The new features are part of a broader investment in a video production suite for creators. The company has also emphasized that creator collaborations are a powerful growth strategy, a key context for its new, more flexible co-hosting tools.
Reading Recap:
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Snowflake & Yahoo DSP deepen ties for publisher data, Roku joins early
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