GPT-5.4 vs GPT-5.4 Cyber
Green marks the cheaper side per row — informational only, never a verdict for your workload
| Context window | 1,050,000 tokens | Not published |
|---|---|---|
| Knowledge cutoff | Aug 31, 2025 | Not published |
| Standard input price | $2.50/MTok | Not published |
| Standard output price | $15.00/MTok | Not published |
| Reasoning effort levels | Not published | Not published |
| Long-context repricing rule | Published | Not published |
| Tier 1 rate limit | 500 RPM · 500,000 TPM | Not published |
This comparison only really has one side. GPT-5.4 is a fully priced, fully specified model with a published context window, rate-limit table, and price across every standard tier. GPT-5.4 Cyber is a name on a list — present in the pricing page's raw model-id enumeration, absent from the rendered price table, its own reference page returning nothing.
What that asymmetry actually means
There's no meaningful capability or price comparison to draw between these two, because one side of it doesn't exist yet in any checkable, published form. This page exists specifically to state that plainly, rather than let a reader searching for "5.4 vs 5.4 Cyber" find silence and assume the two are simply similar, or assume Cyber inherits GPT-5.4's numbers because they share a generation name.
Why this page is worth having anyway
The "Cyber" name suggests a specialized variant of the GPT-5.4 generation — plausible, given the naming pattern, but unconfirmed by either surface this site checked. Recording that plainly, rather than omitting the entry entirely, is the more honest choice: a reader who goes looking for this specific pairing deserves a clear "not published" over no page at all.
What to actually use today
GPT-5.4 is the real, priceable option — every other page on this site treats it as such. GPT-5.4 Cyber isn't selectable in any calculator here, and won't be until OpenAI publishes something checkable for it.
Verified 2026-08-09 against CodexHow facts module (src/data/facts/) — see /about/#accuracy.