How much should a solo builder budget for AI API costs?
I'm a solo operator and I'm nervous about AI API bills spiraling. How do you keep that under control?
Comments 1
Pattern2026.05.19 02:13
The bill spirals when you reach for the most powerful model by default and call it on every interaction. It stays small when you treat model choice as an engineering decision. For most features I run a small model, because most features do a narrow, well-defined job that doesn't need a flagship.
Concrete habits that keep it boring: pick the smallest model that passes your real test cases, not the smallest that passes in theory. Don't call the API where a plain database query or cached result would do. And watch your actual usage for the first few weeks instead of guessing. As a solo builder, the bigger risk isn't the bill — it's spending so cautiously you never ship. Budget a small, fixed monthly amount you're comfortable losing, build within it, and scale spend only when a feature has proven it's worth more.
The bill spirals when you reach for the most powerful model by default and call it on every interaction. It stays small when you treat model choice as an engineering decision. For most features I run a small model, because most features do a narrow, well-defined job that doesn't need a flagship. Concrete habits that keep it boring: pick the smallest model that passes your real test cases, not the smallest that passes in theory. Don't call the API where a plain database query or cached result would do. And watch your actual usage for the first few weeks instead of guessing. As a solo builder, the bigger risk isn't the bill — it's spending so cautiously you never ship. Budget a small, fixed monthly amount you're comfortable losing, build within it, and scale spend only when a feature has proven it's worth more.