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GPT-5.4 Nano

OpenAI · released 5 months ago

GPT-5.4 Nano is a OpenAI model with a 400K token context window — about 570 pages of text. It reads Files, Images, and Text and replies in Text. It can show its reasoning before it answers.

$0.230

input / 1M tokens

$1.44

output / 1M tokens

400K

context — about 570 pages

0.23¢

a client proposal

Pricing

Input
$0.230 per million tokens
Output
$1.44 per million tokens
Cached input
$0.023 per million tokens
Web search
1.1¢ per search

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 (2026-03-17)
Context window
400K tokens — about 570 pages
Max output
128K tokens per reply
Input
Files, Images, and Text
Output
Text
Reasoning
Shows its thinking before answering
Knowledge cutoff
2025-08-31

Cost vs Token Amount

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80% Input20% Output
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GPT-5.4 Nano

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What a task costs

2K tokens in · 500 tokens out.

GPT-5.4 Nano

OpenAI

0.12¢

for this task

39% input · 61% output

Full pricing →

Your $5 welcome credit covers about 4,241 of these.

Compare GPT-5.4 Nano

Closest in price on a typical task:

GPT-5.4 Nano vs DeepSeek V3.1 →GPT-5.4 Nano vs Nex-N2-Pro →GPT-5.4 Nano vs Perceptron Mk1 →GPT-5.4 Nano vs Qwen Plus 0728 →Any other combination →

Questions, answered

How much does GPT-5.4 Nano cost on Alyph?

GPT-5.4 Nano costs $0.230 per million input tokens and $1.44 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 0.23¢. 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 Nano's context window?

400K tokens — about 570 pages. Replies can be up to 128K tokens long.

Can GPT-5.4 Nano read images and files?

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

Does GPT-5.4 Nano show its reasoning?

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

Test GPT-5.4 Nano against DeepSeek V3.1

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

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