Cerebras vs. SpaceX: AI Race Heats Up

Two major companies, Cerebras Systems and SpaceX, debuted on public markets in 2026, initiating a notable competition in the artificial intelligence sector. Cerebras, which specializes in wafer-scale AI systems and cloud access, reported a significant 287% year-over-year increase in its non-GAAP cloud and services revenue, reaching $127.7 million in the second quarter ending June 30. This growth aligns with market trends where AI inference spending is projected to exceed training expenditures.

SpaceX, known for its reusable rockets and satellite network, also boasts a substantial AI segment, including the Grok LLM. Their AI business generated nearly $2.6 billion in revenue during the second quarter of fiscal year 2026. Despite Cerebras' impressive growth rate and a rapidly expanding market for AI inference, it faces customer concentration risks. The company relies heavily on a few clients for a significant portion of its revenue. SpaceX, conversely, benefits from its profitable Starlink business, providing a strong financial foundation to support its AI expansion efforts.

Gartner forecasts global AI inference spending to reach $23.3 billion in 2026, highlighting the increasing importance of running AI models in production. This shift benefits Cerebras, whose total non-GAAP revenue grew by 103.3% year-over-year to $209.9 million in Q2 fiscal 2026. The company has also raised its full-year revenue guidance. Investors will be closely watching if Cerebras' faster growth trajectory can outpace SpaceX's established financial power over the next five years.