Meta's Threads crossed 400M monthly active users in Q2 2026. That's more than X. So should creators leave X? We ran the same 120 posts across both platforms over 60 days. The data is more nuanced than "just go where the users are."
The experiment
We used 6 accounts (3 tech, 3 lifestyle) with matched follower counts (~15k on each platform). Every post was published on both platforms within 30 minutes of each other. We measured reach, engagement, follower growth, and off-platform clicks.
Reach: Threads wins by a mile
Median reach per post:
- Threads: 8,400 impressions
- X: 3,100 impressions
Threads is still in "growth mode" — the algorithm boosts almost every post from a mid-tier creator. X's algorithm is far more selective.
Engagement quality: X wins
- Comment length average: X 18 words vs Threads 6 words.
- Bookmark-to-impression ratio: X 1.4% vs Threads 0.3%.
- Off-platform clicks: X 0.9% vs Threads 0.1%.
Translation: Threads gets you seen, X gets you money.
Follower growth
Both grew accounts, but the pattern differed. Threads added followers steadily (+150/week average). X was lumpy — one viral post added 400 followers, most posts added under 20.
Best content for each
Threads wins with: - Casual, opinionated one-liners. - Behind-the-scenes and personal moments. - Cultural commentary (movies, sports, news). - Photos with a short caption.
X wins with: - Long-form threads (5+ tweets). - Data-heavy insights and screenshots. - Founder / builder journeys. - Anything B2B, tech, or finance.
The recommendation
If you have 30 minutes a day, post 3 casual pieces on Threads and 1 substantive piece on X. Cross-post nothing — the tone that works on Threads gets ratio'd on X and vice versa.
If your goal is audience monetization (courses, newsletters, SaaS), weight your time 70% X, 30% Threads. If your goal is cultural presence and brand deals, flip it: 70% Threads, 30% X.
Threads is the reach platform of 2026. X is still the money platform.