Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $350M Series B (Dec 2025). $50M US Navy contract for Blackbeard hypersonic prototyping. 1,000-acre solid rocket motor facility under construction.
Castelion is a defense startup developing the Blackbeard hypersonic missile system, one of the few startups with an active US Navy contract for hypersonic weapons full-scale prototyping and early operational fielding. The company raised $350 million in Series B financing in December 2025 and secured a $50 million US Navy contract for Blackbeard prototyping, directly addressing the DoD's urgency to field hypersonic strike capability as China and Russia have demonstrated operational hypersonic weapons.
Gemini 3 Ultra outperforms on major benchmarks; Gemini chatbot 750M MAU; AI Overviews reaches 2B monthly users. Google Cloud Vertex AI serves Anthropic + Meta. $2B invested in Anthropic; deep integration of AI across Search, Workspace, Android.
Google is a Mountain View, California-based global technology company — the world's dominant search engine and digital advertising platform — operating Google Search (the most visited website on the internet, processing 8.5 billion+ searches daily), YouTube (2+ billion monthly users, the world's second-largest search engine), Google Ads (the dominant digital advertising marketplace), Android (3 billion+ device operating system), and Google Cloud (the #3 cloud platform). Part of Alphabet Inc. (NASDAQ: GOOGL), Google generated $350+ billion in consolidated Alphabet revenue in fiscal year 2024 with Google Services (Search + YouTube + Google Network) contributing approximately $285 billion.
Castelion vs
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