Grok and xAI
xAI and Grok sit inside SpaceX's SI segment. Usage below is from the S-1, as of 31 March 2026. There is no Grok-only revenue, and no later usage figure in a filing.
- Official117 millionGrok-feature monthly active users2026-03-31
- Official550 millionX and Grok MAUs, March 2026December 2025 was 520 million
- Official6.3 millionPaid subscribers4.4 million X Premium or Premium+, 1.9 million SuperGrok tiers
- Official$7,560 millionSI segment, Q3 2026This is not a Grok line
X and Grok together. 117 million monthly active users had used Grok's AI features. Paid subscribers were 4.4 million on X Premium or Premium+ and 1.9 million on SuperGrok tiers. No later usage figure is in a filing. Grok-only revenue is not reported. SI includes X advertising, Grok subscriptions, cloud compute and Cursor (consolidated from 14 August 2026). The Q3 jump is solutions and infrastructure, not a disclosed Grok subscription line. There is no Grok-only revenue.
The X Subscription, official list
Premium is described as SuperGrok, Cursor Pro and X Premium+ benefits, previously $90 a month combined. Taxes excluded.
| Plan | Monthly | Annual |
|---|---|---|
| Free | 0 | — |
| Plus | 8 | 80 |
| Premium | 30 | 300 |
| Super | 100 | 1000 |
| Ultra | 200 | 2000 |
API
Official grok-4.7, USD per 1 million tokens: input $2, cached $0.5, output $6. At 200k prompt tokens or above: $4 / $1 / $12. Context 500k. Batch is 20% off. Priority is 2×. The US regional endpoint is 1.1×. This calculator does not stack batch and priority, because the docs do not say they combine. Web search $5 per 1,000 calls. X search $5 per 1,000 posts and $10 per 1,000 profiles. Code execution $5 per 1,000. Those meters are not in the token calculator.
The cost calculator uses this list and these token rates.
Legacy prices, third-party
Third-party A third-party page says these legacy plans still run. SuperGrok at about $30 is implied by xAI's '$90 combined' line, not printed as its own price. The calculator uses only the official X Subscription list. The page cites SuperGrok Heavy at $300, X Premium at $8 and X Premium+ at $40.
Fan sketch of subscription maths only. The last official Grok-feature and SuperGrok counts are from 31 March 2026. Price starts at $0 because SpaceX does not disclose a Grok mix. This is not SI segment revenue. The Q3 2026 SI total was mostly solutions and infrastructure.
| Year | Subscribers | Subscription, USD millions | With your other assumption |
|---|---|---|---|
| 2026 | 117,000,000 | 0 | 0 |
| 2027 | 117,000,000 | 0 | 0 |
| 2028 | 117,000,000 | 0 | 0 |
| 2029 | 117,000,000 | 0 | 0 |
| 2030 | 117,000,000 | 0 | 0 |
Sources
- SpaceX Form S-1 (2026-05-20)
- SpaceX Q3 2026 earnings release (2026-10-20)
- The X Subscription pricing (2026-10-27)
- xAI: Introducing The X Subscription (2026-10-27)
- xAI API pricing (2026-10-27)
- whizi.io on legacy SuperGrok prices (third-party) (2026)