GPT-5.4

Mar 2026
GPT-5.4
Compare in
on
—per task?
$2.50 / $15per 1M in / outcache $0.25
—output speed?
1.05Mcontext

Alternatives?

History

17 versions
00.511.522.5Jan 26Apr 26Release dateLech Mazur Short-Story5.2 · Dec5.4 · Mar5.5
00.511.522.5Jan 26Apr 26Release dateLech Mazur Short-Story5.2 · Dec5.4 · Mar5.5

Benchmarks

in Writing & Language

FAQ

How much does GPT-5.4 cost?›

$2.50 per 1M input tokens and $15 per 1M output tokens; cached input $0.25 per 1M.

Is GPT-5.4 free to use?›

There is no free API; the cheapest paid price is $2.50 per 1M input tokens.

How good is GPT-5.4, and what is it best at?›

#27 of 334 in Chat & Knowledge, #26 of 44 in Coding, #48 of 175 in Agents & Tool Use, #35 of 195 in Writing & Language, #32 of 124 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Long context, Knowledge, Instructions.

Is GPT-5.4 better than GPT-5.2?›

On Lech Mazur Short-Story, GPT-5.4 scores 2 vs 0.3 — higher.

How can I use GPT-5.4?›

Through the API of Amazon Bedrock, Azure, OpenAI.

What is the context window of GPT-5.4?›

1.05M tokens, with up to 128K output tokens.

When was GPT-5.4 released? Is there a newer version?›

Released 2026-03-05. It has been superseded by GPT-5.5.

Is GPT-5.4 open source?›

No, GPT-5.4 is a closed model available through an API. The closest open-weights option here is GLM 5.3.

Can GPT-5.4 read images?›

It accepts text and images, PDF files as input.

What is GPT-5.4?›

GPT-5.4 is a closed language model from OpenAI, released Mar 2026, the successor to GPT-5.2.

What are the best alternatives to GPT-5.4?›

GLM 5.3 (cheaper).