The App War: Cursor vs Copilot vs Windsurf

Benchmarks aside, the real scoreboard is revenue, active users, and eye-watering valuations.

The top 3

1. Cursor: fastest to $100M ARR, ~$9.9B valuation: Anysphere's editor became the fastest software startup to $100M ARR, reaching a roughly $9.9B valuation in 2025.
2. GitHub Copilot: 20M+ users, the incumbent: Microsoft's distribution muscle put Copilot in 20M+ developers' hands and across roughly 90% of the Fortune 100.
3. The Windsurf saga: a $3B deal that imploded: OpenAI's reported ~$3B acquisition collapsed; Google paid ~$2.4B for its leaders, and Cognition scooped up the rest.

Sources

• Cursor
• GitHub Copilot
• TechCrunch

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