GPT-5.4 mini

Name: GPT-5.4 mini
Brand: OpenAI
Price: 4.5 USD

previous OpenAI

Verified 2026-10-22 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

Input

$0.75

Cached input

$0.075

Cache write

—

Output

$4.50

Context window

400,000

Max output

128,000

Weights

closed

Caching

automatic

272,000 max input tokens, stated on the model's own page

Watch out

GPT-6 Luna is $0.10/$0.50 against this row's $0.75/$4.50, with a window 2.6x larger. Kept for code that pinned it

What we would use it for

Cheap tier if you are already pinned to it

What this has cost, week by week

Output price at each refresh since 2026-07-30. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

07-30 $4.50→08-06 $4.50→08-14 $4.50→08-20 $4.50→08-27 $4.50→09-03 $4.50→09-10 $4.50→09-17 $4.50→09-24 $4.50→10-01 $4.50→10-08 $4.50→10-15 $4.50→10-22 $4.50

newly stated2026-09-24 · window, max_output — 400K / 128K from OpenAI's per-model page, newly cited. Previously null.

Where these numbers came from

No number on this page was written that was not read from one of those pages on 2026-10-22. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

Discussed in Naderu Weekly

The name stayed. The model didn't. — 2026-09-10

The rest of the board

This row sits alongside 76 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.