Tomasz Tunguz Blog · 2025-07-10 · 329d

AI Budget Allocation Framework for Startups

Tomasz Tunguz analyzes how much startups should allocate to AI as a percentage of R&D spending, proposing a framework that accounts for engineer salaries, AI tool subscriptions, and additional compute costs. Based on practical experience, he estimates typical startups should budget 10-15% of R&D expenses for AI, with higher ratios for AI-native companies.

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Metrics in this report

AI Agent Subscription Cost

6000$/year

per agent

Multiple tools (Cursor, Devin)

AI as Percentage of R&D

10-15%

range

Typical startup baseline estimate

Additional AI Monthly Costs

1000$/month

observed

Per engineer, based on author experience

Agents Managed per Engineer

3count

assumed

Model assumption for productivity

Software Engineer Annual Salary

200000$

typical

Silicon Valley, for AI budgeting model

Total Cost per Engineer Annual

230000$

includes AI

Salary plus AI subscriptions and compute