Models / openai
o4-mini pricing
Input
$1.1
per 1M tokens
Output
$4.4
per 1M tokens
100k calls / month*
$264.00
*1,200 in / 300 out avg tokens
provider list price · as of 2026-07-02 · source: the same table ReasonRank uses in production
How much does o4-mini cost per million tokens?
o4-mini costs $1.1 per million input tokens and $4.4 per million output tokens (list price, as of 2026-07-02).
What does o4-mini cost at 100k calls a month?
At 100,000 calls/month averaging 1,200 input and 300 output tokens, o4-mini costs about $264.00/month at list prices.
Is a cheaper model good enough to replace o4-mini?
Price tables can’t answer that — it depends on your workload. ReasonRank tests candidate models on your own cases with a statistical non-inferiority gate, then verifies savings on live traffic.
Wondering if o4-mini is over- or under-powered for your workload? Estimate with the free calculator, or connect your traffic and let ReasonRank verify the answer on your own cases.