Coding agent costs vary 63x by model, from $19 to $1,200/month

A busy single-developer coding agent consuming 90M input and 25M output tokens per month costs between $19 and $1,200 depending on the model, according to live API rates. Output token pricing dominates, with a 54x gap between the cheapest and most expensive models. The analysis shows that specialist code models can cost 4-9x more than general-purpose small models, but may reduce iteration count.