All OpenAI models

o3 Mini High

OpenAI · released February 2025

o3 Mini High is a OpenAI model with a 200K token context window — about 290 pages of text. It reads Text and Files and replies in Text. It can show its reasoning before it answers.

$1.26

input / 1M tokens

$5.06

output / 1M tokens

200K

context — about 290 pages

1¢

a client proposal

Pricing

Input
$1.26 per million tokens
Output
$5.06 per million tokens
Cached input
$0.632 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
February 2025 (2025-02-12)
Context window
200K tokens — about 290 pages
Max output
100K tokens per reply
Input
Text and Files
Output
Text
Reasoning
Shows its thinking before answering
Knowledge cutoff
2023-10-31

Cost vs Token Amount

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80% Input20% Output
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o3 Mini High

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What a task costs

2K tokens in · 500 tokens out.

o3 Mini High

OpenAI

0.51¢

for this task

50% input · 50% output

Full pricing →

Your $5 welcome credit covers about 988 of these.

Compare o3 Mini High

Closest in price on a typical task:

o3 Mini High vs o3 Mini →o3 Mini High vs o4 Mini →o3 Mini High vs o4 Mini High →o3 Mini High vs Claude Haiku 4.5 →Any other combination →

Questions, answered

How much does o3 Mini High cost on Alyph?

o3 Mini High costs $1.26 per million input tokens and $5.06 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 o3 Mini High's context window?

200K tokens — about 290 pages. Replies can be up to 100K tokens long.

Can o3 Mini High read images and files?

o3 Mini High reads Text and Files. Drop a file onto the canvas and it becomes part of the context — the only limit is the context window.

Does o3 Mini High show its reasoning?

Yes. o3 Mini High can expose its thinking before the final answer, so you can watch how it got there.

Test o3 Mini High 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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