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GPT-5.4

Release Ruler for GPT-5.4: released Mar 5, 2026, $2.5 per 1M input tokens, proprietary. Each thin stem on the ruler is another model we track.

GPT-5.4 is an OpenAI language model released Mar 5, 2026; OpenAI's newest language model in our dataset is GPT-6.1 Terra. Proprietary, API access only. OpenAI's GPT-5.4, released Mar 5, 2026 with built-in computer use through the Responses API. Verified against vendor sources on Oct 26, 2026.

Reported Last verified · All models · JSON · Markdown

  • ReleasedMar 5, 2026
  • Context window1.05M1,050,000 tokens
  • Max output128K128,000 tokens
  • LicenceProprietaryProprietary (API)
InTextImageOutText

Key facts

GPT-5.4: key facts with sources
FactValueSource
VendorOpenAIn/a
ReleasedMar 5, 2026source
Statusgenerally availablen/a
API idgpt-5.4source
Context window1,050,000 tokens (1.05M)source
Max output128,000 tokenssource
Inputtext, imagesource
Outputtextsource
LicenceProprietary (API)source
Pricing$2.5 in / $15 out per 1M tokenssource

Where GPT-5.4 sits in our data

How GPT-5.4 differs from GPT-5.4 mini

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

  • Listed price is $2.5 in and $15 out, against $0.75 in and $4.5 out for GPT-5.4 mini (per 1M tokens).
  • Context window is 1.05M tokens against 400K for GPT-5.4 mini.
  • Both accept text, image as input.
  • GPT-5.4 came out 12 days before GPT-5.4 mini.
  • Facts for the other model: GPT-5.4 mini.

What we tested

Nothing yet. We have not run GPT-5.4 ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.

Sources

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