
Defense AI Visibility Index 2026: 28,400 Prompts Across 5 Engines — and the Gap Between Citation Share and Contract Wins
5W's Defense & Aerospace AI Visibility Index 2026 tested 28,400 prompts across ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews. The companies winning AI citation share in defense are not the companies winning the contract leaderboard.



