All OpenAI models

o3 Mini

OpenAI · released January 2025

o3 Mini 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
January 2025 (2025-01-31)
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

Drag the slider to adjust the split between input and output workload.

80% Input20% Output
free$1.01$2.020 tokens250k500k750k1000k
o3 Mini

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.

o3 Mini

OpenAI

0.51¢

for this task

50% input · 50% output

Full pricing →

Your $5 welcome credit covers about 988 of these.

Compare o3 Mini

Closest in price on a typical task:

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

Questions, answered

How much does o3 Mini cost on Alyph?

o3 Mini 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's context window?

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

Can o3 Mini read images and files?

o3 Mini 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 show its reasoning?

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

Test o3 Mini against o3 Mini High

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

Sign up free Try the demo