Models / openai
gpt-4o pricing
Input
$2.5
per 1M tokens
Output
$10
per 1M tokens
100k calls / month*
$600.00
*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 gpt-4o cost per million tokens?
gpt-4o costs $2.5 per million input tokens and $10 per million output tokens (list price, as of 2026-07-02).
What does gpt-4o cost at 100k calls a month?
At 100,000 calls/month averaging 1,200 input and 300 output tokens, gpt-4o costs about $600.00/month at list prices.
Is a cheaper model good enough to replace gpt-4o?
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 gpt-4o 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.