Calculators for AI agents and automation
Plan the cost, reliability and return of AI agents and automation with your own numbers. Every formula is shown, and the math runs in your browser.
Cost and tokens
LLM API cost calculator for Claude, GPT and Gemini
Estimate LLM API cost per request, day and month for Claude Opus 5.5, GPT-6.1 Sol, Gemini 4 Argon and other models, with current prices per 1M tokens
Open calculatorAI agent run cost calculator
See how steps and a growing context drive the token count and cost of one agent run and a month of runs
Open calculatorPrompt caching savings calculator
Compare monthly input cost with and without prompt caching, using your cache discount, write premium and hit rate
Open calculatorWords to tokens and context window calculator
Turn pages and words into an estimated token count and see how much of a model’s context window your documents fill
Open calculatorReliability and durable execution
Retry and exponential backoff calculator
Plan a retry policy: see each wait, the longest delay and the total time a step can spend retrying before it gives up
Open calculatorAgent success rate compounding calculator
See how a small failure rate per step compounds over a long agent run, and how retries change the odds
Open calculatorQueue worker count calculator (Little’s Law)
Size the workers behind a job queue from arrival rate, processing time and the utilization you want to keep
Open calculatorRate limit throughput calculator
Find out how many agent runs and parallel agents your API rate limits allow, and whether requests or tokens are the bottleneck
Open calculatorSLA uptime and downtime calculator
Turn an uptime percentage like 99.9% into the downtime it allows per day, week, month and year
Open calculatorReturn on investment
AI agent ROI calculator
Estimate the hours an AI agent saves, the net monthly value, the payback period and the first-year ROI
Open calculatorAutomation payback period calculator
Work out how many months an automation takes to pay back its setup cost, and its net value after one and three years
Open calculatorAI coding agent ROI calculator
Weigh the developer time coding agents save against seat costs, API costs and the extra time spent reviewing their pull requests
Open calculator