Models › OpenAI
OpenAI API pricing
GPT-5.4 mini.
$0.75 in. $4.50 out.
Input / 1M$0.75
Cached input / 1M$0.075
Output / 1M$4.50
Context—
Source: OpenAI official pricing · checked Oct 20, 2026 · context window not listed on the pricing page
What it costs per month.
1,000 input and 500 output tokens per request, no caching.
| Volume | Monthly cost |
|---|---|
| 1K requests | $3.00 |
| 100K requests | $300.00 |
| 1M requests | $3,000.00 |
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