Why Every API Retry Is a New Cost, Not a Free Second Chance

A software engineering post argues that retrying a failed API call is not a continuation of the original request but an entirely new job that re-enters the queue from scratch. Each retry can carry a larger token payload because error context gets appended to the next prompt, compounding both token costs and wait times. Exponential backoff, while considered a best practice, adds developer-chosen delays on top of unpredictable queue delays — and the two stack rather than cancel each other out. An agent configured with multiple retries can silently turn one failed tool call into four queued jobs, inflating what appeared to be a low-cost operation. The author recommends instrumenting the retry path directly to measure actual attempts, wait time, backoff, and a retry multiplier before assuming spare API capacity is suitable for time-sensitive workloads.