Break-even planning
API vs Subscription Calculator
The cheapest option changes when you move from occasional prompts to daily coding-agent sessions. A subscription may be cheaper for frequent work, while API usage may be better for occasional or automated workflows with strict controls.
Break-even formula
Break-even tasks = monthly subscription price divided by estimated cost per task. If your monthly task volume is higher than that number, a subscription-style plan may be worth considering.
Use the main calculator to estimate task cost, monthly usage, and break-even tasks.