Instagram Long Form Video Is Coming: Should You Post Your YouTube Videos There Too?

Instagram CEO Adam Mosseri has said in an interview with Colin and Samir that Instagram is adding long form, horizontal video that can run over an hour and plays on phones and TVs. If you run a YouTube channel for your business, the obvious thought is that you can take the long videos you've already made and get a second platform for free.

It's worth testing. But I want to be clear about what I'd test and what I wouldn't assume, because it's easy to skip a step here.

I wrote this article based on what was revealed in the Colin and Samir interview.

What Instagram has said so far

In an interview published on 26 October 2026, Adam Mosseri, CEO of Instagram, said the new format (“features”) can run over an hour and plays on phones and TVs. Long videos will show up in Explore, and short clips can link through to the full video. Instagram plans to build clipping tools for this.

He also said several things that matter to anyone planning around it:

• Mosseri said Instagram still needs to build the ability to close the app and keep listening. He described continuing on the TV as something that should be seamless, which sounds like a goal rather than a shipped feature.
• There's no scaled payment programme for the format yet. He said Instagram will do some one-off paid deals to get the format started, but gave no terms.
• He called it “a big risk” and said he doesn't know if it will work.
• Rollout dates and who gets access weren't given.

So today it's a feature to watch and prepare for, not a platform to move to.

The trap: YouTube plus Instagram doesn't equal both platforms' best parts

The tempting maths is simple. YouTube gives your long videos search traffic, a library that keeps working and a revenue share. Instagram gives you a huge audience, easy sharing and direct messages. Put the video on both and you get everything, right?

I wouldn't count on it. The two platforms are built to do different jobs, so a video doesn't carry its YouTube advantages across with it.

1. They want different things from a video.
YouTube's own help page says its recommendations draw on watch and search history, subscriptions, likes and dislikes, “Not interested” feedback, and surveys that ask how satisfied you were, not just how long you watched. (How YouTube recommendations work)

Mosseri said Instagram focuses way less on watch time than its competitors do, though he said it still cares about it. For reaching people who don't follow you, the signal he singled out is sends per reach: how many viewers send the video to someone else. He also named originality, recency and giving new accounts a chance to break out. And he said long form only succeeds if, like Reels, it also grows messages, retention and the number of people who use Instagram each day.

In principle, a video that holds viewers for 40 minutes can do very well on YouTube and be an average performer on Instagram if nobody sends it on. The reverse is also possible.

2. They're matched to different moments.
Many YouTube viewers arrive with a question, often typed into search. That's why a good video can keep bringing in viewers for years. Instagram viewers mostly arrive from a feed, Explore or a clip, and Mosseri described recency as a ranking factor. I can't tell yet whether a how-to video will keep earning on Instagram the way it does on YouTube, and it's too early for anyone to know.

3. They make money in different ways.
YouTube shares advertising revenue with creators and has done for years. Mosseri said Instagram's existing performance bonuses for video lose money, and that he'd support performance payments, including for long form, as long as they at least break even. Options he named include one-off deals, brand deals, subscriptions and ads, but he didn't commit to a revenue share. If your channel earns directly from YouTube today, don't assume that follows you.

4. The product is unfinished.
You can't put a clickable link in an Instagram caption. Mosseri said close-and-keep-listening is still to be built, and a smooth hand-off to the living room TV is a goal rather than something he said exists.

5. Each platform has its own goals.
YouTube's recommendations are built around viewer satisfaction on YouTube. Mosseri said Instagram also ranks for originality, recency and new-account breakouts, and judges long form by whether it grows messages, retention and daily users.

The Takeout: Treat Instagram as a different platform with different rules, and judge it on its own results.

Why it could still be worth testing

Trust takes time to build, and it builds fastest when a viewer sees you more than once, in more than one place. I think of it as know, like and trust.

• Know: a long video and its clips give a stranger more chances to meet you.
• Like: Instagram's sends and replies turn a video into a conversation with a real person.
• Trust: a long video shows how you think. A direct message lets a viewer ask you something.

The direct message is the part YouTube doesn't give you in a form I'd rely on. For a coach, consultant or service business, the sale often happens in a conversation. If a viewer can watch your 30 minute video, send it to a colleague and message you with a question, that's a shorter path from “I like this person” to a booked call.

That's the possibility. It isn't a result yet.

What you could lose

• Attention. Time spent on Instagram is time not spent on your YouTube channel.
• Clarity. A conversation in a direct message can hide which video started it, unless you ask.
• Views. One commenter on the interview said they won't post long form to Instagram because it could split views from their YouTube video.
• Control. A commenter on the same thread pointed to new Meta business terms. Reports say Meta has moved their start to 20 November and that they let it crawl websites linked to business accounts. Check the current terms before you link out from Instagram.

The Takeout: Write down what you'd be giving up before you decide what you'd be getting.

How I'd test it

I wouldn't move anything. I'd add Instagram to one video and see what happens.

1. Pick one long video that already brings enquiries on YouTube. Write down its enquiries and views first. This is your baseline.
2. Cut three to five clips from it and link them to the full video when Instagram allows it.
3. Add a source to your enquiry log. Add “message on Instagram” next to your YouTube sources. Ask every new enquiry which video they watched.
4. Run it for 30 days. Don't change anything else on the channel.
5. Measure what Instagram says matters to it. Sends per reach on each clip, messages started per 1,000 people reached, and messages that turn into a call.
6. Check YouTube hasn't suffered. Compare that video's YouTube enquiries to the baseline.
7. Decide. A passing result is at least one booked call traced to an Instagram message, with no drop in the YouTube enquiries. Anything less is information, not a plan.

You may find the clips with the most views aren't the ones that start conversations. Mosseri's own advice was to experiment and to work out whether the tools suit your business.

The Takeout: One video, one baseline, 30 days, one question: did Instagram bring an enquiry that YouTube wouldn't have?

What I'm doing about it

I haven't got Instagram long form results to show you, because the format isn't open yet. My plan is to test it on real channels as soon as I can, and I'll only recommend it to clients if the numbers support it. In the meantime, the work stays the same: find which of your long videos bring enquiries, and make more of those. That's the work that tells you which video is worth putting on a second platform.

The Takeout: The video most worth testing on Instagram is the one already bringing enquiries on YouTube.

So, should you post your YouTube videos on Instagram too?

You can't post YouTube long form videos on Instagram yet. It's coming, and Instagram hasn't said when. Here's the summary of what you'd gain and what you'd risk.

The pros

• A second place for people to meet you, using videos you've already made.
• Sends and replies can turn a video into a conversation with a real person.
• A direct message is a shorter path from “I like this person” to a booked call.
• Clips can link through to the full video, and Instagram plans clipping tools.

The cons

• Instagram ranks videos differently. It focuses less on watch time and more on sends, originality and recency.
• People find videos in a feed, not a search bar, so a video may not keep earning for years the way it can on YouTube.
• There's no scaled payment programme, only some one-off deals.
• The product is unfinished, with no clickable caption links and no close-and-keep-listening yet.
• It costs attention, can split views, and can hide which video started an enquiry.

My answer: yes, test it, but treat it as a test. Once Instagram opens long form to you, put one video that already brings enquiries on YouTube there, and judge Instagram on its own results over 30 days. Don't move your channel, don't cut back on YouTube to find the time, and don't expect Instagram to add its benefits to YouTube's. Keep it only if it brings enquiries YouTube wouldn't have.

The Takeout: Yes, test it with one video, and keep it only if it brings enquiries YouTube wouldn't have.

Questions people ask

Can you post long videos on Instagram?

It's coming. Instagram hasn't said when it will be available or to whom. It has said it's adding long form, horizontal video that plays on phones and TVs.

Will my YouTube videos do as well on Instagram?

There's no way to say yet. YouTube leans on watch time and viewer satisfaction. Instagram leans on sends and sharing between friends, with watch time counting for less. The same video can do well on one platform and badly on the other.

Does Instagram pay for long form video?

Not through a general programme yet. Instagram's CEO says existing video bonuses lose money and he'd back performance payments only if they at least break even. He said some creators will get one-off deals to get the format started. Brand deals, subscriptions and ads were also mentioned, and no revenue share has been promised.

Method and limitsSources, dates and what this can't see

Sources: the Colin and Samir interview with Adam Mosseri, published 26 October 2026, read in full with its comments, and YouTube's help page on how recommendations work. Quotes are paraphrases except “a big risk”.

Two things I couldn't confirm. The Meta terms date (20 November) and scope come from news reports, not from Meta's own terms page, which I haven't read. And the point that YouTube search keeps a video earning for years comes from general experience, not from a source I checked, so the article treats it as unproven for Instagram.

UK Google Ads volumes for the phrases around this topic were between 10 and 170 searches a month in September 2026, before the announcement. That's small, so this article is about positioning, not a search opportunity.

I have no Instagram long form results of my own yet. Nothing here is a finding about what works, only a plan for finding out.

Analysis and write-up: Stewart Read.