I Built a Free Tool to Compare AI API Costs—Here's What Surprised Me About the Pricing

Every developer building on AI APIs hits the same wall eventually. You pick a model, start building, and then suddenly you're staring at your billing dashboard wondering where all your credits went. GPT-4o for everything sounds great until you're running 10,000 prompts a day and the invoice arrives. I built AI API Cost Calculator to solve this exact problem — for myself first, and then for everyone else. The problem with comparing AI pricing Every provider publishes their pricing on their own p...