Subscription versus API cost calculator

Compare a monthly ChatGPT, Claude, or Gemini subscription with estimated pay-as-you-go LLM API usage for your team.

How to use this tool

  1. Choose the API model you want to evaluate.
  2. Set the team size and daily usage profile.
  3. Compare the estimated monthly API total with the subscription total per seat.

Worked example: Example: a one-person plan priced at $20 per month is cheaper than a $28 monthly API estimate, while a $7 estimate is cheaper through the API.

Response length
Estimated GPT-5.4 mini API cost$1.80 / month

ChatGPT Plus

$20.00 per seat / month

$20.00subscription total

API is lower by $18.20.

Claude Pro

$20.00 per seat / month

$20.00subscription total

API is lower by $18.20.

Gemini Advanced

$20.00 per seat / month

$20.00subscription total

API is lower by $18.20.

Bring your keys. Keep your savings.