openai
OpenAI: GPT-5.4 Mini API Pricing
OpenAI: GPT-5.4 Mini costs $0.750 per 1M input tokens and $4.50 per 1M output tokens (cache reads: $0.075). Context window: 400K. Prices verified 2026-08-23 · source
Input / 1M tokens
$0.750
Output / 1M tokens
$4.50
Context window
400K
Max output
128K
What would OpenAI: GPT-5.4 Mini cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $24.00 |
| Coding agent | 5,000 | 8,000 / 2,000 | $75.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $157.50 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $39.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: GPT-5.4 Mini
GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding,...