According to monitoring by Beating, Business Insider exposed a years-long subtle symbiotic relationship between the AI programming tool Cursor and its primary model provider, Anthropic. Internal employees described the relationship between the two companies as highly unusual: Cursor heavily relied on Anthropic’s APIs to power its core coding functions, while Anthropic derived nearly 40% to 50% of its early revenue from API calls made by Cursor users. Yet, even as this mutual benefit continued, Anthropic secretly developed a competing tool. Before launching its terminal-based programming tool, Claude Code, Anthropic executives privately reassured Cursor’s management that Claude Code was merely an academic research experiment with no plans for large-scale commercialization. However, after its release, Claude Code rapidly gained popularity among developers, with its annualized revenue surging to $2.5 billion by February 2026—surpassing Cursor’s then $2 billion annualized revenue. Losing its technological exclusivity, Cursor immediately faced a mass exodus of users, with many developers publicly announcing on social media that they had canceled their Cursor subscriptions in favor of Claude Code. Deeper panic arose from the threat of model cutoffs: during Windsurf’s negotiations with OpenAI over an acquisition, Anthropic abruptly severed its model supply to Windsurf. This incident served as a wake-up call for Cursor. On January 5, Michael Truell convened an emergency all-hands meeting and decided to fully commit to developing an in-house model. Cursor subsequently built the Composer series based on open-source models from Moonshot AI. By the time Composer 2.5 was released in May, over 85% of the work had been internally developed, maintaining its advantages of low cost and high concurrency while reducing dependence on interfaces from leading tech giants.
Cursor Urges Users to Conduct Their Own Research After Anthropic Launches Competitor Claude Code
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Summary
AI + crypto news: Cursor has urged users to conduct their own research after Anthropic launched its competing product, Claude Code. Previously, Anthropic supplied nearly 40% to 50% of Cursor’s API needs. By February 2026, Claude Code had generated $2.5 billion in annualized revenue, drawing away many Cursor users. Anthropic also cut off model access to rival Windsurf, exacerbating the situation. In response, Cursor now relies on Moonshot AI’s open-source models for its Composer series, with over 85% of development conducted in-house. New token listings remain a key focus for the crypto market.
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