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GPT-3.5 Turbo Instruct

OpenAI · released September 2023

GPT-3.5 Turbo Instruct is a OpenAI model with a 4K token context window — about 6 pages of text. It reads Text and replies in Text.

$1.73

input / 1M tokens

$2.30

output / 1M tokens

4K

context — about 6 pages

1¢

a client proposal

Pricing

Input
$1.73 per million tokens
Output
$2.30 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
September 2023 (2023-09-28)
Context window
4K tokens — about 6 pages
Max output
4K tokens per reply
Input
Text
Output
Text
Reasoning
Answers directly
Knowledge cutoff
2021-09-30

Cost vs Token Amount

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80% Input20% Output
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GPT-3.5 Turbo Instruct

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.

GPT-3.5 Turbo Instruct

OpenAI

0.46¢

for this task

75% input · 25% output

Full pricing →

Your $5 welcome credit covers about 1,086 of these.

Compare GPT-3.5 Turbo Instruct

Closest in price on a typical task:

GPT-3.5 Turbo Instruct vs o3 Mini →GPT-3.5 Turbo Instruct vs o3 Mini High →GPT-3.5 Turbo Instruct vs o4 Mini →GPT-3.5 Turbo Instruct vs o4 Mini High →Any other combination →

Questions, answered

How much does GPT-3.5 Turbo Instruct cost on Alyph?

GPT-3.5 Turbo Instruct costs $1.73 per million input tokens and $2.30 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 1¢. 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-3.5 Turbo Instruct's context window?

4K tokens — about 6 pages. Replies can be up to 4K tokens long.

Can GPT-3.5 Turbo Instruct read images and files?

GPT-3.5 Turbo Instruct is text-only. The canvas still serializes uploads into plain text, so you can work with files — but it cannot see images.

Does GPT-3.5 Turbo Instruct show its reasoning?

No — GPT-3.5 Turbo Instruct answers directly, without a visible thinking pass.

Test GPT-3.5 Turbo Instruct against o3 Mini

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

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