Trending Now - Claude Becomes Top App Amid Pentagon Controversy

WHO:

Anthropic: AI company that developed the chatbot Claude.

President Trump: Ordered federal agencies to phase out Anthropic's technology.

Sam Altman: CEO of OpenAI.

Pete Hegseth: Secretary of Defense who designated Anthropic as a "supply chain risk to national security."

Katy Perry: Pop musician who expressed support for Claude on social media.

Adam Lyttle: User who documented his switch from ChatGPT to Claude on social media.

WHAT:

Anthropic's Claude rose to No. 1 in the App Store as of February 28, 2026.

Users are defecting from ChatGPT to Claude due to concerns over OpenAI's agreement with the Department of Defense.

OpenAI reached an agreement with the Department of Defense to deploy AI models in its classified network.

Anthropic plans to challenge the supply chain risk designation in court.

OpenAI's contract includes prohibitions on the use of its AI for mass surveillance and autonomous weapons.

WHERE:

App Store: Claude ranked number one among productivity apps in the U.S.

Washington, D.C.: Location of the public dispute between Anthropic and the Department of Defense.

WHEN:

February 28, 2026: Date when Claude ranked number one in the App Store.

November 2024: Date when Anthropic, Palantir, and Amazon Web Services struck an agreement to provide access to Claude models for U.S. intelligence and defense agencies.

February 28, 2026: Date when Adam Lyttle shared his switch to Claude on social media.

WHY:

Users are concerned about OpenAI's ambitions and ethical implications of its agreement with the Department of Defense.

The Pentagon's stance against Anthropic has led to increased visibility and user support for Claude.

HOW:

Users are sharing their experiences on social media platforms like X and Reddit, documenting their switch from ChatGPT to Claude.

OpenAI's agreement with the Department of Defense includes specific language regarding the use of AI for surveillance and autonomous weapons.

In a significant move, President Trump has ordered federal agencies to phase out Anthropic's technology, designating it a supply chain risk to national security, as Secretary of Defense Pete Hegseth supports this stance. Meanwhile, Anthropic's chatbot Claude has surged to the top of the App Store as of February 28, 2026, with users like Adam Lyttle sharing their transitions from ChatGPT due to concerns over OpenAI's agreement with the Department of Defense. In response, Anthropic plans to challenge this designation in court, while pop star Katy Perry has publicly voiced her support for Claude on social media.