Key Takeaways
- X has begun a phased rollout of a fully rebuilt, AI-powered advertising platform developed with xAI
- The new platform promises improved targeting, more relevant ad placements, and better campaign control for marketers
- X’s global ad revenue is forecast to reach $2.46 billion in 2026, up from $2.26 billion in 2025, per eMarketer
- Despite the recovery, X’s ad business remains roughly half the size of Twitter’s $4.51 billion peak in 2021
- xAI acquired X in an all-stock deal in March 2025, valuing xAI at $80 billion and X at $33 billion
X has launched a rebuilt advertising platform powered by AI, the company’s most significant move yet to win back the brand advertisers who abandoned the platform in the early years of Elon Musk’s ownership.
According to TechCrunch, X began a phased rollout of the new system on Thursday, describing it as featuring more modern retrieval and ranking systems built on AI.
The platform is designed to give marketers more precise targeting, better campaign control, and more relevant ad placements, with AI handling optimisation across the stack.
The rebuild is a direct product of X’s merger with Musk’s AI company xAI, which completed an all-stock acquisition of X in March 2025.
Musk announced the deal on X at the time, saying the transaction valued xAI at $80 billion and X at $33 billion, with the two companies combining their data, models, compute, distribution, and talent under a new holding entity called xAI Holdings Corp.
@xAI has acquired @X in an all-stock transaction. The combination values xAI at $80 billion and X at $33 billion ($45B less $12B debt).
Since its founding two years ago, xAI has rapidly become one of the leading AI labs in the world, building models and data centers at…
— Elon Musk (@elonmusk) March 28, 2025
The ad recovery is real but still incomplete. eMarketer data puts X’s global ad revenue at $2.26 billion in 2025, rising to a projected $2.46 billion in 2026.
That represents meaningful growth after a 51.7% collapse in 2023, but the platform’s ad business is still roughly half the $4.51 billion Twitter generated in 2021 as a public company.
Very few companies would have the ambition and technical courage to completely rebuild their entire advertising platform in such a short timeframe. — Monique Pintarelli, Head of Global Advertising, xAI
Reuters previously reported that part of X’s 2025 ad recovery was driven by small and medium-sized businesses, a segment the platform had historically struggled to attract, as well as by advertisers who viewed spending on X as a pragmatic cost of doing business given Musk’s influence in the Trump administration.
One of the structural advantages the xAI merger was meant to deliver is direct access to X’s vast body of user-generated content for AI training, alongside the platform’s 600 million active users as a built-in distribution channel for xAI’s products including its chatbot Grok. The rebuilt ad platform is the first major commercial output of that combined infrastructure.
The timing places X squarely inside a broader digital advertising boom. Google reported 19% Search advertising growth in Q1 2026, while Meta’s AI-powered ad tools have driven sustained revenue acceleration.
Across the industry, AI systems automating ad creation, targeting, and measurement have lowered the barrier for smaller advertisers and increased returns for larger ones.
Whether X’s rebuilt stack can close the gap with those platforms remains to be seen. The platform’s brand safety concerns have not fully resolved, and the distance between a phased rollout and a fully operational competitive ad product is still significant.
