ChatGPT’s dominant 97.7% implied probability stems from its entrenched #1 position atop the US Apple App Store free apps chart, where it leads Claude by Anthropic and Google Gemini amid surging AI assistant adoption. OpenAI’s app has reclaimed the top spot after a brief February dip when Claude surged on backlash to OpenAI’s Pentagon ties, buoyed by higher free-tier limits and consistent user engagement that made it 2025’s most downloaded app. Trader consensus reflects this stability, with real capital betting on inertia through April 3. Realistic challenges include a rival AI update boosting downloads or viral spikes from apps like Threads or sports trackers, though no such catalysts loom imminently.

Experimental AI-generated summary referencing Polymarket data · Updated Apr 1, 2026, 2:44 PM UTC