AI Token & Cost Calculator
Estimate tokens and the input/output cost of any AI model call
Tokens are estimated (~4 characters each). Actual counts vary by model and language.
Prices are in USD per 1,000,000 tokens: edit to match your provider.
Estimates only: provider prices change often and tokenisation varies. Verify against your provider before budgeting.
About AI Token & Cost Calculator
The AI token and cost calculator estimates what your LLM API calls will cost. Paste text to estimate its token count, roughly one token per four characters, or enter input and output token figures directly, then pick a model from the built-in pricing list or supply custom per-million-token prices.
The calculator multiplies input and output tokens by their respective USD prices per 1,000,000 tokens, giving the cost per call with a breakdown of input versus output cost. Add your expected calls per day and it projects daily, monthly and yearly spend: the numbers you need before shipping an AI feature.
Because output tokens usually cost several times more than input tokens, the split matters: a chatty response format can dominate your bill. All estimates run free in your browser; verify prices against your provider before budgeting, as rates change often and tokenization varies by model and language.
How to use AI Token & Cost Calculator
- Optionally paste text to estimate its tokens, then click “Use as input”.
- Pick a model from the pricing list, or choose Custom and enter your own input and output prices per million tokens.
- Set the input tokens, output tokens and expected calls per day.
- Read the cost per call, the input/output breakdown and the projected daily, monthly and yearly spend.