OpenAI API pricing
GPT-5.4 mini pricing
Input / 1M tokens
$0.75
Output / 1M tokens
$4.50
Cached input / 1M
$0.075
Source: OpenAI pricing, checked 1 Nov 2026. API name: gpt-5.4-mini.
Price your prompt on GPT-5.4 mini
What a prompt costs on GPT-5.4 mini
| Example | Tokens in / out | Cost | 1,000 a day, per month |
|---|---|---|---|
| A short question and answer | 50 / 300 | $0.0014 | $41.63 |
| A one-page document summarised | 700 / 400 | $0.0023 | $69.75 |
| A 300-line code file reviewed | 4,000 / 1,200 | $0.0084 | $252.00 |
| A 50-page report summarised | 35,000 / 1,500 | $0.033 | $990.00 |
Token sizes are typical, not exact. Replies include any thinking the model does.
Other GPT models
GPT-6 AstraGPT-6.1 SolGPT-6.1 TerraGPT-6 LunaGPT-5.5GPT-5 nano
FAQ
How much does GPT-5.4 mini cost?
$0.75 per million input tokens and $4.50 per million output tokens on OpenAI's standard API tier, and $0.075 per million for cached input. Checked 1 Nov 2026.
What does one prompt cost on GPT-5.4 mini?
A 1,000-token prompt with a typical medium-length reply costs about $0.0043. Paste your own prompt into the calculator for an exact figure.