Models › OpenAI

OpenAI API pricing

GPT-5 nano.
$0.05 in. $0.40 out.

Input / 1M$0.05
Cached input / 1M$0.005
Output / 1M$0.40
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.

VolumeMonthly cost
1K requests$0.25
100K requests$25.00
1M requests$250.00

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