ChatGPT Downloads Rise as Claude Gains Global Momentum

Anthropic’s AI assistant, Claude, has experienced a significant surge in user acquisition and market visibility, surpassing OpenAI’s ChatGPT in daily downloads and reaching the top spot for free applications on the U.S. Apple App Store.

This growth follows a high-profile conflict between Anthropic and the U.S. Government regarding the use of artificial intelligence in military and intelligence operations.

Market Shift and Download Metrics

Data indicates a shift in the competitive landscape of consumer AI. Claude has outpaced ChatGPT in daily downloads, recording 149,000 daily downloads compared to 124,000 for ChatGPT.

The growth was particularly pronounced in late February and early March 2026. On March 1, 2026, Similarweb reported that Claude experienced 185,510 downloads, representing a 69.19% increase over the previous day. During the same period, ChatGPT saw 312,210 downloads, which was a modest increase of 3.67%.

By Saturday, February 28, 2026, Claude reached the No. 1 position on Apple’s rankings of top free U.S. Apps, placing ChatGPT at No. 2 and Google’s Gemini at No. 4.

Statcounter figures further indicate that these increased downloads translated into measurable market share gains that were sustained through March 2026.

The Pentagon Contract Controversy

The spike in popularity is linked to Anthropic’s decision to reject a $200 million deal with the U.S. Department of Defense. The company refused to allow its models to be used for fully autonomous weapons or mass domestic surveillance.

This principled stand positioned Claude as an ethical alternative to other AI providers. In contrast, OpenAI stepped in to take the Pentagon contract that Anthropic refused.

The decision drew a sharp reaction from the Trump administration. On Friday, February 27, 2026, President Donald Trump posted on Truth Social, stating that the Leftwing nut jobs at Anthropic have made a DISASTROUS MISTAKE trying to STRONG-ARM the Department of War, and force them to obey their Terms of Service instead of our Constitution.

Defense Secretary Pete Hegseth subsequently requested that Anthropic be labeled as a supply-chain risk to national security, a move intended to prevent U.S. Defense contractors from utilizing Anthropic’s tools.

Operational Context and Corporate Response

Despite the friction with the Department of Defense, Anthropic CEO Dario Amodei stated that it is the Department’s prerogative to select contractors most aligned with their vision.

Amodei added that because of the substantial value that Anthropic’s technology provides to our armed forces, we hope they reconsider.

The growth occurs against a backdrop of differing user bases. While Claude has seen rapid momentum and reached 11.3 million daily active users on mobile, OpenAI’s ChatGPT operates from a much larger base of approximately 900 million users according to Similarweb estimates.

Industry analysis suggests the public response has been driven by the visible conflict with Washington. This occurred even as Anthropic reportedly loosened some of its own internal safety commitments, specifically dropping a pledge to pause the training of more powerful models if safety could not be guaranteed.

Strategic Implications

The current trend highlights a growing consumer preference for AI solutions perceived as user-friendly and ethical. By walking away from the government contract, Anthropic has seen a boost in brand trust and enterprise deals, effectively leveraging a strategic public relations position to challenge the market dominance of OpenAI.