What generating a thousand words of AI text costs.
Per-article the cost is trivial; at thousands of articles it becomes a real line item, and prompt size matters. Cut the repeated prompt with prompt caching.
Free cost-per-1,000-words calculator — model price and prompt size to the cost of generating 1,000 words of AI text.
About 1,000 words is ~1,333 output tokens. Cost = prompt tokens × input price + output tokens × output price. On a mid model that's a fraction of a cent to a few cents per 1,000 words.
Because you pay for the instructions and any context you send, not just the words generated. A long system prompt on every request adds up across a lot of content.