openai
OpenAI: GPT-5.4 Nano API Pricing
OpenAI: GPT-5.4 Nano costs $0.200 per 1M input tokens and $1.25 per 1M output tokens (cache reads: $0.020). Context window: 400K. Prices verified 2026-08-23 · source
Input / 1M tokens
$0.200
Output / 1M tokens
$1.25
Context window
400K
Max output
128K
What would OpenAI: GPT-5.4 Nano cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $6.60 |
| Coding agent | 5,000 | 8,000 / 2,000 | $20.50 |
| RAG pipeline | 30,000 | 4,000 / 500 | $42.75 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $10.50 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: GPT-5.4 Nano
GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...