Claude hits No. 1 on App Store as ChatGPT users defect in show of support for Anthropic's Pentagon stance
businessinsider.com
March 1, 2026
3 min read
63/100
Summary
Anthropic's Claude has reached No. 1 on the App Store as users shift away from ChatGPT in response to OpenAI's Pentagon agreement. OpenAI's agreement emphasizes human oversight of autonomous weapons and restricts mass surveillance.
Key Takeaways
- Anthropic's Claude became the number one most downloaded productivity app on the Apple App Store as ChatGPT users defected in response to OpenAI's Pentagon agreement.
- OpenAI secured an agreement with the Department of Defense emphasizing human oversight of autonomous weapons and prohibiting mass surveillance.
- Some ChatGPT users expressed unease over OpenAI's ambitions, leading to a significant number of account cancellations and a movement towards Anthropic's Claude.
- Anthropic plans to challenge a designation by the Secretary of Defense labeling it as a "supply chain risk to national security."
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