Threads vs X for B2B lead generation: where founders actually answer in 2026

Threads isn't the empty room it was in 2023. Meta reported it passed 350 million monthly active users in early 2025. And on phones, the gap to X has closed.

So you can stop asking whether your buyers are on Threads at all. For most B2B audiences under 45, a good chunk of them are. The better question is how they use it.

Here's the catch. Third-party estimates put daily time on Threads at around 5 minutes, against roughly 34 on X. People on Threads check in. People on X live there.

That changes how you run outreach. On X, a DM can sit for a day and still get seen in the next long session. On Threads, you get a smaller window, and your name needs to be familiar the moment they glance at their requests. Warm-up matters more, not less.

X still owns the hardcore build-in-public crowd: developer tools founders, AI engineers, indie hackers posting revenue screenshots, and VCs. If you sell to technical founders, X is the deeper pool.

Threads pulled a different mix. Founders and operators who got tired of X, agency owners, coaches and creators who came over from Instagram, and a lot of marketers testing the newest channel. Meta also says more than a third of daily Threads users with connections follow mostly different accounts there than on Instagram. So it's not just Instagram with text. It's its own graph.

• Selling dev tools or infra to engineers: start on X.
• Selling services to agencies, coaches or creator businesses: Threads is often warmer.
• Selling to SaaS and AI founders in general: run both, they overlap less than you'd think.

X DMs have been hammered by bots and cold pitches for years. A lot of founders simply lock their inbox. Threads messaging only went live in July 2025, and cold requests only in September. There's less noise, and people haven't built the reflex to ignore every request yet.

The trade-off: Threads is stricter. Messages to non-followers go to requests, links are off in those requests, and there's a cap on how many you can send. On X, the problem is closed inboxes. On Threads, it's the request folder. Both reward the same thing, being a name they've seen before.

There's a traffic angle too. Newsweek reported that in March 2025 it got more referral traffic from Threads, with 160,000 followers, than from X, with 3.5 million. One publisher isn't proof of anything for you, but it shows attention on Threads can punch above its follower count.

Don't debate it. Test it. Pick 100 good-fit prospects who are active on both apps. Warm up and DM 50 on each with the same core message. Count replies, not impressions.

Keep everything else equal. Same send times, same follow-up rhythm, same warm-up of a like and a real reply before the DM. If you change the message on one side, you're testing the message, not the platform.

Give it a full week before you judge. Threads replies tend to come in bursts, when people open the app, and X replies drift in over longer sessions. A two-day test will lie to you.

Whichever app answers more gets more of your budget. For many teams the answer ends up being both, with different audiences on each. The founders who ignore one of them are usually the ones who never tested it.