Free tool · No signup

AI Cost Calculator

Estimate monthly LLM API costs for Claude, GPT, and Gemini in 60 seconds. Built for AI Product Managers validating cost models before launch.

Inputs

$3/M input · $15/M output

Results

Per request
$0.0036
Single API call cost
Per user / month
$5.33
Assumes 30 days, fixed usage
Monthly at 100 users
$533
Current scenario total
Annual run rate
$6,399
Monthly × 12
Scale projections
at 1k users$5,333/mo
at 10k users$53,325/mo
Approximate pricing. Costs shown are based on published API pricing as of May 2026. INR conversion uses $1 = ₹84. Real bills can vary based on region, volume discounts, tier negotiations, and pricing changes. Always verify against the provider's current pricing page: Anthropic, OpenAI, Google.

Why AI Product Managers need a real cost model

Most AI features ship without a validated cost model. Three months later the bill spikes, margins evaporate, and the team scrambles to renegotiate model choice or add rate limits. The PMs who avoid this fate build the cost model before launch, validate it against real API calls, and bring it to every product review.

A real cost model has more nuance than this calculator captures. Conversation history accumulation, prompt caching effectiveness, tool calls, retries, regional pricing, and volume discounts all matter at scale. This calculator gets you to the right order of magnitude in 60 seconds. The next step is running 50 real API calls through your actual feature and validating the numbers. We teach that whole methodology in ShipSet.

Want to learn the full cost-modelling methodology?

ShipSet teaches the AI PM craft over 90 daily 15-minute lessons. Cost modelling is Lesson 47-51. Plus 9 other artifacts hiring managers actually evaluate. Take the diagnostic to see if it fits your situation.

Take the diagnostic
Free. No email required. 2 minutes.