Reviewed for clarity and usability · September 2026
Estimate AI API token costs using your own input/output token volumes and per-million-token rates.
TutorCalc does not hardcode AI vendor pricing here. Enter the current rates for the model you plan to use.
AI workloads can have separate input and output token prices. Estimate both sides of a request, multiply by expected usage, and compare scenarios before scaling an application. Model pricing changes frequently, so always enter the current rates from your provider.
Test short versus long prompts, different output lengths, and low versus high request volumes. This helps identify whether prompt size, generated output, or traffic volume is the biggest cost driver.
Start with your current numbers, review the result, then change one assumption at a time. Comparing scenarios makes the calculator more useful for planning and helps you understand which inputs have the biggest effect.
Use realistic, up-to-date inputs and treat the result as a planning estimate. For financial, tax, engineering, or operational decisions, verify important figures with the appropriate provider or qualified professional.
Input tokens represent content sent to an AI model, while output tokens represent content generated by the model.
AI model pricing changes frequently, so current provider rates produce a more useful estimate.
It can help estimate model usage costs for applications, experiments, automation, and other token-based workloads.