In a striking demonstration of how corporate ethics can translate into market momentum, Anthropic's refusal to cooperate with U.S. Department of Defense requests has produced measurable — and substantial — gains in consumer adoption for its Claude AI platform. Rather than suffering reputational damage from being designated a supply-chain risk by the Pentagon, Anthropic appears to have gained a significant wave of public goodwill that has driven app downloads, active users, and web traffic to record levels.
The conflict traces back to Anthropic CEO Dario Amodei's decision to decline government requests that would have allowed the use of Claude's AI systems for mass surveillance of Americans or to operate fully autonomous weapons. The Pentagon subsequently labeled Anthropic a supply-chain risk — a designation that, counterintuitively, appears to have resonated positively with a broad base of consumers.
The download data tells a compelling story. According to app intelligence provider Appfigures, Claude's mobile app surpassed ChatGPT in U.S. daily downloads as of March 2. Appfigures estimates place Claude at 149,000 daily downloads against ChatGPT's 124,000 on that date — a notable reversal in what has historically been OpenAI's dominated territory.
Beyond new installs, engagement metrics reveal an even more pronounced shift. Market intelligence firm Similarweb tracked Claude's combined iOS and Android daily active users reaching 11.3 million on March 2, representing a 183% increase from the start of the year when usage hovered around 4 million. The platform also recorded approximately 5 million daily active users at the beginning of February, underscoring the acceleration that accompanied news of Anthropic's negotiations with the Pentagon.
This growth has elevated Claude above several notable competitors in the daily active user rankings, including Perplexity and Microsoft Copilot. However, ChatGPT continues to dominate the broader market by a considerable margin, recording 250.5 million daily active users across iOS and Android on the same date. Claude's surge began later in the month, meaning sustained momentum through March could further close the competitive gap.
Web traffic trends reinforce the mobile data. Similarweb reports that Claude's web traffic climbed 43% month-over-month in February and surged 297.7% year-over-year. During the same period, ChatGPT's web traffic declined by 6.5% month-over-month, suggesting at least a partial transfer of users between platforms. Google's Gemini posted a modest 2.1% month-over-month increase, a slower pace than in prior months.
Anthropic has been candid about the scale of its growth, noting publicly that Claude is now recording more than 1 million sign-ups per day. The Claude app claimed the No. 1 position on the U.S. App Store over the most recent weekend and has held that ranking, while also topping charts in 15 additional countries, including Austria, Belgium, Canada, Finland, France, Germany, Ireland, Italy, New Zealand, Norway, Portugal, Singapore, Switzerland, and the United Kingdom. The company further stated that Claude has broken its own sign-up record every single day since early last week across every country where the service is available.
This comes alongside a separate report indicating that ChatGPT app uninstalls have been rising in parallel — a trend that, taken together with Claude's gains, points to meaningful consumer-level realignment within the AI assistant market.
While Anthropic declined to validate third-party figures directly, a company spokesperson confirmed the underlying trajectory. Daily active users have more than tripled since the beginning of 2026, and paid subscribers have doubled, the spokesperson stated — providing an internal benchmark that broadly aligns with the external data.
For industry observers, the episode presents an instructive case study: a principled stance on AI ethics, even one that carries significant institutional risk, can serve as a powerful differentiator in an increasingly crowded market. Whether this momentum proves durable — or whether it represents a temporary sentiment-driven spike — will depend on the weeks and months ahead.
