All OpenAI models

GPT-5.4

OpenAI · released 5 months ago

GPT-5.4 is a OpenAI model with a 1.05M token context window — about 1,500 pages of text. It reads Text, Images, and Files and replies in Text. It can show its reasoning before it answers.

$2.88

input / 1M tokens

$17.25

output / 1M tokens

1.05M

context — about 1,500 pages

2.8¢

a client proposal

Pricing

Input
$2.88 per million tokens
Output
$17.25 per million tokens
Cached input
$0.287 per million tokens
Web search
1.1¢ per search
Long-context rate (over 272K)
$5.75 in · $25.88 out, per million tokens

Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.

The numbers

Provider
OpenAI
Released
5 months ago (2026-03-05)
Context window
1.05M tokens — about 1,500 pages
Max output
128K tokens per reply
Input
Text, Images, and Files
Output
Text
Reasoning
Shows its thinking before answering

Cost vs Token Amount

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80% Input20% Output
free$4.89$9.770 tokens250k500k750k1000k
GPT-5.4

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What a task costs

2K tokens in · 500 tokens out.

GPT-5.4

OpenAI

1.4¢

for this task

40% input · 60% output

Full pricing →

Your $5 welcome credit covers about 347 of these.

Compare GPT-5.4

Closest in price on a typical task:

GPT-5.4 vs Nova Premier 1.0 →GPT-5.4 vs Claude Sonnet 4 →GPT-5.4 vs Claude Sonnet 4.5 →GPT-5.4 vs Claude Sonnet 4.6 →Any other combination →

Questions, answered

How much does GPT-5.4 cost on Alyph?

GPT-5.4 costs $2.88 per million input tokens and $17.25 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 2.8¢. Billed from your Alyph wallet, with hard spending limits. Prices can change when the provider changes theirs; this page was last checked on August 9, 2026.

What is GPT-5.4's context window?

1.05M tokens — about 1,500 pages. Replies can be up to 128K tokens long. Prompts longer than 272K tokens are billed at the long-context rate.

Can GPT-5.4 read images and files?

GPT-5.4 reads Text, Images, and Files. Drop a file onto the canvas and it becomes part of the context — the only limit is the context window.

Does GPT-5.4 show its reasoning?

Yes. GPT-5.4 can expose its thinking before the final answer, so you can watch how it got there.

Test GPT-5.4 against Nova Premier 1.0

One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.

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