All OpenAI models

o3 Pro

OpenAI · released June 2025

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

$23.00

input / 1M tokens

$92.00

output / 1M tokens

200K

context — about 290 pages

$0.19

a client proposal

Pricing

Input
$23.00 per million tokens
Output
$92.00 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
June 2025 (2025-06-10)
Context window
200K tokens — about 290 pages
Max output
100K tokens per reply
Input
Text, Files, and Images
Output
Text
Reasoning
Shows its thinking before answering
Knowledge cutoff
2024-06-30

Cost vs Token Amount

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

80% Input20% Output
free$18.40$36.800 tokens250k500k750k1000k
o3 Pro

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 Pro

OpenAI

$0.09

for this task

50% input · 50% output

Full pricing →

Your $5 welcome credit covers about 54 of these.

Compare o3 Pro

Closest in price on a typical task:

o3 Pro vs GPT-5 Pro →o3 Pro vs Claude Opus 4 →o3 Pro vs Claude Opus 4.1 →o3 Pro vs GPT-4 →Any other combination →

Questions, answered

How much does o3 Pro cost on Alyph?

o3 Pro costs $23.00 per million input tokens and $92.00 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about $0.19. 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 Pro's context window?

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

Can o3 Pro read images and files?

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

Does o3 Pro show its reasoning?

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

Test o3 Pro against GPT-5 Pro

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