All OpenAI models

o1-pro

OpenAI · released March 2025

o1-pro is a OpenAI model with a 200K token context window — about 290 pages of text. It reads Text, Images, and Files and replies in Text. It can show its reasoning before it answers.

$172.50

input / 1M tokens

$690.00

output / 1M tokens

200K

context — about 290 pages

$1.41

a client proposal

Pricing

Input
$172.50 per million tokens
Output
$690.00 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
March 2025 (2025-03-19)
Context window
200K tokens — about 290 pages
Max output
100K tokens per reply
Input
Text, Images, 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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o1-pro

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What a task costs

2K tokens in · 500 tokens out.

o1-pro

OpenAI

$0.69

for this task

50% input · 50% output

Full pricing →

Your $5 welcome credit covers about 7 of these.

Compare o1-pro

Closest in price on a typical task:

o1-pro vs GPT-5.4 Pro →o1-pro vs GPT-5.5 Pro →o1-pro vs Claude Opus 4.7 (Fast) →o1-pro vs GPT-5.2 Pro →Any other combination →

Questions, answered

How much does o1-pro cost on Alyph?

o1-pro costs $172.50 per million input tokens and $690.00 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about $1.41. 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 o1-pro's context window?

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

Can o1-pro read images and files?

o1-pro reads Text, Images, and Files. Drop a file onto the canvas and it becomes part of the context — the only limit is the context window.

Does o1-pro show its reasoning?

Yes. o1-pro can expose its thinking before the final answer, so you can watch how it got there.

Test o1-pro against GPT-5.4 Pro

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

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