Use this when
The unit is tokens
Choose this page when you are comparing models, estimating a repeated workflow, or deciding whether context, output length, and reasoning effort are making one task too expensive.
Free calculator
AI token cost calculator for Claude, OpenAI, Cursor, and Gemini.
Estimate what a repeated prompt, coding session, or agent workflow costs before it becomes a monthly surprise. Use this for token-level API math; use the full AI cost calculator when you need subscriptions and API spend in one monthly bill.
Interactive Calculator
Estimate your monthly AI spend
Adjust to match your typical workflow. Calculations use published API pricing.
Primary model
Messages / day: 40
5200
Context / message: 800 words
1004000
At current usage
$12.47/month
1,064 input tokens/msg · $0.42/day
With optimisations applied
$7.29/month
Save $5.18/month · 42% reduction
Optimisations modelled: 40% context reduction via /compact + CLAUDE.md, 50% of tasks routed to Haiku/mini. Actual savings vary. Pricing based on published standard API rates as of June 2026.
Use the other calculator when
The unit is your bill
The main AI cost calculator is for subscription math: Claude, ChatGPT, Cursor, Copilot, Gemini, plus optional API spend. It answers what you pay each month, not what one token workflow costs.
Best next step
Track the live version
A calculator is a snapshot. Tokens 4 Breakfast puts the live spend signal in your Mac menu bar, then keeps Claude Code, OpenAI, Cursor, Copilot, Gemini, and subscriptions in one local view.
Pricing inputs
Verify current model rates before making budget decisions.
The estimator uses published standard API rates encoded in the site content as of June 2026. Provider prices can change, and cached, batch, regional, or subscription-based usage can be priced differently. Check the official pages before using the output as a purchasing decision.