X Platform Statistics 2026: SpaceX Filing Audited Data

For three and a half years, every public statistic about X (formerly Twitter) was either a third-party estimate, a Musk public statement, or — increasingly — a number circulating between secondary aggregators with no traceable primary source. That changed on 20 May 2026, when SpaceX filed its S-1 registration statement with the SEC ahead of its planned IPO. Because xAI and X are consolidated under the SpaceX umbrella, the filing disclosed audited revenue, user, and capital expenditure figures for the combined X + Grok ecosystem.

This guide rebuilds the X platform picture from the audited numbers up. Where the S-1 discloses a figure directly, the S-1 is the source. Where it does not, we cite a named third party — eMarketer for advertising revenue, The Information for subscription ARR, Pew Research for US demographics, and Sprout Social for cross-platform engagement benchmarks. Anything we cannot source we say so, and a final section lists the metrics that remain private after the filing.

X went private on 27 October 2022. From that day until 20 May 2026, no audited X user or revenue figure existed in the public record. The SpaceX S-1 filing changes that by virtue of corporate structure: SpaceX is consolidating xAI and X under its umbrella ahead of its IPO, which forces audited financials for the combined entity into the registration document.

The audited 550M MAU figure sits within a wider range of third-party estimates that circulated during the private window. Public statements from Musk and X executives ranged from 550M to 600M+ over the past 18 months; aggregator estimates ranged from roughly 480M to 620M. The S-1 number is the first that resolves those estimates against an audited count, and the figure lands inside the bottom half of the prior range.

What MAU, DAU, and mDAU actually mean

MAU (monthly active users) counts unique accounts that took any action on the platform within the prior 30 days. DAU (daily active users) is the equivalent for a single day. mDAU (monetizable daily active users) was a Twitter-specific metric introduced in 2019 that excluded logged-out viewers, certain bot networks, and users in regions where ads were not sold — it was the metric advertisers priced against. The S-1 reports MAU, not mDAU. The last publicly-reported mDAU figure was 237.8M in Q2 2022, and no third party can compute mDAU externally because the definition is internal to X.

X Premium has three tiers — Basic ($3/month), Premium ($8/month), and Premium+ ($16/month with full Grok access). Subscriber counts by tier have never been disclosed publicly. What can be tracked is the revenue itself, and on that dimension the business has scaled materially in the last twelve months.

The three data points are internally consistent: $365M for the full year 2025 implies an exit run-rate well below $1B; The Information's February 2026 reporting of approximately $1B ARR sits above the 2025 exit; and the S-1's $177M Q1 2026 figure annualizes to roughly $708M, which is a partial-period measurement of an actively-growing book. Taken together, subscription revenue is now a meaningful share of total economics — an unusual position for a major social platform, which typically derives comparatively little from end-user subscriptions.

The advertising business needs two sources. The S-1 itself reports $116M of advertising revenue inside the xAI / X AI segment for 2025 — a figure that appears to cover Grok-related advertising rather than the full X-platform legacy ad business. For X platform overall, eMarketer's published forecast remains the most widely-cited benchmark.

The pattern: a substantial advertising business that has recovered off the 2023 trough for the first time since the ownership change, but is still operating at roughly half its pre-acquisition scale. For comparison, eMarketer's 2025 worldwide digital advertising forecast places Meta at over $160B and Alphabet at over $240B, so X remains a small share of the global ad market even after the recovery.

Brand safety and enforcement

X's transparency reports (H1 and H2 2024) are the most authoritative source on enforcement actions. H1 2024 disclosed 5.3M account suspensions and 10.6M post removals, with 82% compliance on 97,000 legal action requests. H2 2024 showed materially lower enforcement volumes — 1.16M fewer abuse/harassment removals and 164,000 fewer suspensions. Whether that reflects improved upstream filtering or weaker enforcement is contested; brand-safety teams should independently audit pause-lists rather than rely on platform summary statistics.

117M of the 550M combined MAU actively use Grok features — roughly one in five users. No competing social platform has an AI-feature MAU of comparable scale. The compute infrastructure required to serve that integration is the largest single disclosed investment across the category.

For marketers, the structural implication is that Grok-driven discovery — in-app answers, content recommendations, summarized search — is likely to deepen rather than retreat. Content strategy that produces material Grok finds worth citing (original data, structured research, long-form Articles) is structurally favored over pure link-out posts that exist only to push traffic off-platform. The specific magnitudes of that favor (citation rates, reach lift percentages) are not publicly disclosed; treat any specific number for these as an estimate.

Pew Research's November 2025 social media report surveyed 5,022 US adults between February and June 2025. It remains the most credible independent demographic snapshot of US X usage. The headline finding: 21% of US adults use X — well below YouTube, Facebook, Instagram, and TikTok.

The targeting implication: X's male, higher-income, college-educated skew makes it disproportionately valuable for B2B, technology, financial services, and policy categories. For mass-market consumer reach in the US, Meta and YouTube remain substantially larger and more demographically balanced.

X does not publish platform-level engagement rates, CPMs, or format-performance multipliers. The most credible cross-platform benchmark source is the Sprout Social Index, which analyzed roughly three billion social messages from one million public profiles between February 2024 and January 2025 for its 2025 Content Benchmarks Report.

Creator payouts — public statements only

In December 2025, Musk publicly endorsed a step-change in creator payouts on X, with head of product Nikita Bier tasked with implementation. Multiple creator reports in early 2026 cited payouts doubling or tripling versus prior cycles. X has not disclosed an annual total payout figure. Comparative scale: YouTube's 2024 creator payouts (per Storyboard18 and TheStreet reporting) totaled approximately $20B, against $40B of YouTube ad revenue — an order-of-magnitude larger pool than anything X can fund at current scale.

Even after the SpaceX S-1, a number of X metrics that marketers and analysts commonly reference remain undisclosed. Any specific figure circulating for the following should be treated as an estimate without a primary source, and the source should be named explicitly when used in plans, pitches, or reports.

• Monetizable Daily Active Users (mDAU) — not reported since Q2 2022 (then 237.8M). Cannot be measured externally because the definition is internal to X.
• Premium subscriber count by tier — total subscription revenue is now audited, but the split between Basic, Premium, and Premium+ is not.
• Platform-level CPMs and CPC averages — X has never disclosed these. Third-party agency benchmarks vary widely by category, geography, and ad format.
• Country-level MAU — Statista and similar aggregators publish estimates, but they are extrapolations from app-install panels, not platform-disclosed figures.
• Daily Grok query volume inside X — only the Grok MAU (117M) is audited; daily query counts are not.
• Communities and Spaces usage — neither publishes engagement, host counts, or listener metrics in 2025 or 2026.
• Specific creator payout totals — Musk's December 2025 public statements signal direction; annual payout totals remain undisclosed.
• "IAB-rated brand-safe inventory percentage" — the IAB Tech Lab certifies platforms but does not publish a percentage score. Any specific figure attributed to IAB is not an IAB-produced metric.

The audited numbers and the Pew demographic split together sharpen the decision. X is a complement to broader social channels for specific audience and content categories, not a substitute for the larger platforms.