All OpenAI models
GPT-4
OpenAI · released May 2023
GPT-4 is a OpenAI model with a 8K token context window — about 12 pages of text. It reads Text and replies in Text.
$34.50
input / 1M tokens
$69.00
output / 1M tokens
8K
context — about 12 pages
$0.23
a client proposal
Pricing
Input
$34.50 per million tokens
Output
$69.00 per million tokens
Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.
The numbers
Provider
Released
May 2023 (2023-05-28)
Context window
8K tokens — about 12 pages
Max output
4K tokens per reply
Input
Text
Output
Text
Reasoning
Answers directly
Knowledge cutoff
2021-09-30
Cost vs Token Amount
Drag the slider to adjust the split between input and output workload.
80% Input20% Output
GPT-4
Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.
What a task costs
2K tokens in · 500 tokens out.
Your $5 welcome credit covers about 48 of these.
Compare GPT-4
Closest in price on a typical task:
GPT-4 vs GPT-5 Pro →GPT-4 vs o3 Pro →GPT-4 vs GPT-5.2 Pro →GPT-4 vs Claude Opus 4 →Any other combination →
Questions, answered
How much does GPT-4 cost on Alyph?
GPT-4 costs $34.50 per million input tokens and $69.00 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-4's context window?
8K tokens — about 12 pages. Replies can be up to 4K tokens long.
Can GPT-4 read images and files?
GPT-4 is text-only. The canvas still serializes uploads into plain text, so you can work with files — but it cannot see images.
Does GPT-4 show its reasoning?
No — GPT-4 answers directly, without a visible thinking pass.
Test GPT-4 against GPT-5 Pro
One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.