The 'Meta vs TikTok' debate has been raging since 2022, but 2026 is the first year where I can give a genuinely data-backed answer — because both platforms have now run enough AI-powered campaigns for patterns to emerge. After managing campaigns across both for dozens of brands in multiple markets, here's where each platform truly wins.
The Fundamental Difference: Intent vs Discovery
Meta is an intent-capture platform. Users come with latent purchase intent, and Meta's algorithm matches them with relevant products based on 15+ years of behavioral data. TikTok is a discovery platform. Users have no explicit purchase intent — they're there for entertainment, and great content interrupts their scroll with a product they didn't know they wanted.
This isn't a ranking — it's a feature. It determines which strategy works on each platform. Meta rewards retargeting and lookalike precision. TikTok rewards creative quality and authenticity. Running the same campaign strategy on both is the single biggest waste of budget I see from brands entering both platforms simultaneously.
Where Meta Wins
High-consideration purchases ($100+)
Meta's 12-touch retargeting ecosystem (website visitors → engaged video viewers → cart abandoners → past buyers) is unmatched for high-consideration products. The purchase cycle for items over $100 typically spans 7-21 days and multiple touchpoints — Meta's infrastructure handles this better than TikTok's currently does.
B2B and professional services
Despite LinkedIn being the 'obvious' B2B channel, Meta's lookalike modeling on professional attributes (job title, industry, employer) still delivers lower CPL than LinkedIn Ads in most niches. This is partly because Meta's inventory is 10x larger and its algorithm optimizes for lead quality better at scale.
Markets with mature Meta ecosystems
Western Europe, Australia, and North America have Meta users with high ad literacy and clear shopping intent signals. CPMs are higher here than on TikTok, but conversion rates are more predictable and the attribution window is cleaner.
Where TikTok Wins
Products under $80 with strong visual appeal
TikTok's impulse purchase sweet spot is $15-80. Products in beauty, fashion accessories, home decor, fitness gear, and kitchen tools consistently see 40-60% lower CAC on TikTok than Meta in this price range, when the creative quality is high.