AI Apps 50: How Startups Spend on AI
a16z and Mercury reveal where startup money goes
About AI Apps 50: How Startups Spend on AI
a16z and Mercury reveal comprehensive data on how startups spend their AI tool budgets. Spoiler: Not all going to OpenAI. Shows diversification across AI tool ecosystem.
The facts
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- November 28, 2025
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See all →- The September Cut Took 17% of My Claude Code Week. Subagents Took 48%455 sessions of logs show where a Claude Code week actually goes, and which saving tips work.
- Evidence-Driven Development: Give Your Coding Agent Something to ProveWrite a claim that can lose, break the app on purpose, and keep evidence your agent can't fake.
- Slopsquatting: Your AI Invented a Package, and an Attacker Was WaitingNearly 1 in 5 AI-suggested packages in one study did not exist. How attackers use that.
- Free the Models: Harness Design at the FrontierReplit stopped routing work for the model and let the model decide. Here are the numbers.
- UpGuard: 16,326 Supabase Databases Exposing DataThe largest study of Supabase misconfigurations: thousands of app databases readable by anyone.