X Rolls Out AI-Powered Ad Platform in Bid to Woo Back Advertisers

Key facts

• X began a phased rollout of its rebuilt AI-powered ad platform on Thursday.
• eMarketer forecasts X's ad revenue at $2.26 billion in 2025 and $2.46 billion in 2026.
• The 2025 estimate is roughly half of Twitter's 2021 ad revenue.
• Monique Pintarelli, head of global advertising at xAI, announced the rollout in a statement.
• X merged with Musk's xAI last year.
• Elon Musk told prospective ad partners in August 2025 that Grok would enable full ad automation.
• Tesla bought a heap of X ads in 2024 but has since scaled back.
• The company called the update the most ambitious ad platform overhaul in its 20-year history.

A New Ad Platform Built on AI

X has begun rolling out a rebuilt advertising platform powered by artificial intelligence, the company announced Thursday. The update represents the most ambitious overhaul of the ad system in the company's 20-year history, according to a blog post. X hopes the new platform will accelerate the recovery of its ad business, which has been struggling since Elon Musk's acquisition. The platform incorporates the latest AI models from xAI, the artificial intelligence company that merged with X last year. These models power new "retrieval and ranking systems" designed to understand user behavior at a deeper level, enabling more precise and relevant ad delivery in real time. X said the system uses contextual and semantic signals to determine which ads to show where, aligning with what is happening on the platform at any given moment.

Three Core Pillars: Simplicity, Control, Performance

X said the updated platform is built around three core pillars: simplicity, control, and improved ad performance. AI tools within the platform will help advertisers create campaigns more seamlessly, target audiences, and optimize ads. The company stated that the shift toward AI-driven contextual and semantic advertising "will bring meaningful lifts in relevance, engagement and ROI." Monique Pintarelli, head of global advertising at xAI, said in a statement posted on X: "Very few companies would have the ambition and technical courage to completely rebuild their entire advertising platform in such a short timeframe. This is classic X and xAI — bold, fast, and focused on building something substantially better for advertisers." She added that the new ad stack is designed to enable "more rapid and seamless integration of ongoing innovation," with advertisers expecting "a smooth delivery of continuous improvements and a regular drop of new features."

Ad Revenue Recovery Underway, but Still Below Pre-Musk Levels

X's ad business initially struggled to grow revenue in the first few years under Musk's ownership, leading the company to diversify into other monetization channels such as AI and subscriptions. However, forecasts from eMarketer indicate a turnaround: estimated ad revenue of $2.26 billion in 2025, rising to $2.46 billion in 2026. While that is still half the size of Twitter's 2021 ad business, it marks a positive trajectory. The broader digital ad industry has been experiencing a boom, with AI systems helping to automate ad creation, targeting, and measurement. Google and Meta have been among the beneficiaries, and the trend has lowered the barrier for smaller businesses to access sophisticated advertising tools. X is now betting that its AI-powered platform will allow it to capture a larger share of this growing market.

Musk's Vision of Full Automation

Elon Musk has long envisioned a fully automated advertising system on X. In August 2025, during an X Spaces live chat, he told prospective ad partners that xAI's Grok system would eventually enable full advertising automation on the platform. Musk claimed that Grok would be able to assess content for brand safety and ultimately undertake the entire ad creation process on users' behalf. "You should be able to upload an ad and do nothing else. Grok will figure out everything from there. You don't need to do anything at all," Musk said.s not yet available, the new ad platform update is a stepping stone toward that vision, integrating more AI automation elements.

Musk's Changing Stance on Advertising

Elon Musk has been known for his aversion to advertising, long avoiding paid promotion for his companies Tesla, SpaceX, and Starlink. But with X's ad business struggling, that stance has softened. In 2024, Tesla bought a significant number of X ads, though it has since scaled back.also turned to paid promotion on X and other social platforms to boost interest. The new ad platform is part of a broader effort to win back advertisers who left after Musk's takeover. X is now courting those defected advertisers with a promise of improved targeting and performance, powered by the latest AI models from xAI.

Outlook: A Long Road Ahead

While the new ad platform represents a significant technological upgrade, X still faces an uphill battle to restore its ad business to its former glory. The company's estimated 2025 ad revenue of $2.26 billion is still far below Twitter's 2021 peak. Moreover, Musk's ambitious predictions about AI automation have often been ahead of their time, and it remains to be seen how quickly advertisers will embrace the new system. Nevertheless, the integration of xAI's technology and the company's focus on AI-driven advertising could position X to benefit from the broader digital ad boom. As the platform continues to roll out new features and improvements, the coming months will reveal whether this overhaul can truly turn the tide for X's advertising business.

The bottom line

• X has launched a rebuilt AI-powered ad platform, the biggest ad system refresh in its history, integrating xAI's latest models.
• The platform aims to improve targeting and performance through contextual and semantic advertising, with AI automating campaign creation and optimization.
• eMarketer forecasts X's ad revenue at $2.26 billion in 2025, up from recent lows but still half of Twitter's 2021 revenue.
• Elon Musk envisions full ad automation via Grok, but the current update is a more incremental step.
• Musk's own businesses, including Tesla, have begun using paid promotion on X, signaling a shift in his stance on advertising.
• The overhaul is part of X's strategy to win back advertisers who left after Musk's acquisition.