OpenAI

OpenAI: OpenAI o1 Pro

openai/o1-pro

Access OpenAI o1 Pro from OpenAI using Puter.js AI API.

Get Started 
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';

puter.ai.chat("Explain quantum computing in simple terms", {
    model: "openai/o1-pro"
}).then(response => {
    document.body.innerHTML = response.message.content;
});

<html>
<body>
    <script src="https://js.puter.com/v2/"></script>
    <script>
        puter.ai.chat("Explain quantum computing in simple terms", {
            model: "openai/o1-pro"
        }).then(response => {
            document.body.innerHTML = response.message.content;
        });
    </script>
</body>
</html>

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://api.puter.com/puterai/openai/v1/",
    api_key="YOUR_PUTER_AUTH_TOKEN",
)

response = client.chat.completions.create(
    model="openai/o1-pro",
    messages=[
        {"role": "user", "content": "Explain quantum computing in simple terms"}
    ],
)

print(response.choices[0].message.content)

curl https://api.puter.com/puterai/openai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
  -d '{
    "model": "openai/o1-pro",
    "messages": [
      {"role": "user", "content": "Explain quantum computing in simple terms"}
    ]
  }'

Model Card

OpenAI o1 Pro is a version of o1 with more compute for better responses, designed to think longer and provide the most reliable answers. It's the most expensive model at $150/1M input tokens.

Context Window 200K

tokens

Max Output 100K

tokens

Input Cost $150

per million tokens

Output Cost $600

per million tokens

Input text, image

modalities

Tool Use Yes

 

Knowledge Cutoff Sep 2023

 

Release Date Mar 19, 2025

 

Model Playground

Try OpenAI o1 Pro instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.

Chat openai/o1-pro
OpenAI
Chat with OpenAI o1 Pro
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Benchmarks

How OpenAI o1 Pro performs on standard evaluations.

Artificial Analysis
Intelligence Index
25.8
Better than 66% of tracked models

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Frequently Asked Questions

How do I use OpenAI o1 Pro?

You can access OpenAI o1 Pro by OpenAI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.

Is OpenAI o1 Pro free?

Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add OpenAI o1 Pro to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.

What is the pricing for OpenAI o1 Pro?
Pricing for OpenAI o1 Pro is based on the number of input and output tokens used per request.
Price per 1M tokens
Input$150
Output$600
Who created OpenAI o1 Pro?

OpenAI o1 Pro was created by OpenAI and released on Mar 19, 2025.

What is the context window of OpenAI o1 Pro?

OpenAI o1 Pro supports a context window of 200K tokens. For reference, that is roughly equivalent to 400 pages of text.

What is the max output length of OpenAI o1 Pro?

OpenAI o1 Pro can generate up to 100K tokens in a single response.

What is the knowledge cutoff of OpenAI o1 Pro?

OpenAI o1 Pro has a knowledge cutoff date of Sep 2023. This means the model was trained on data available up to that date.

What types of input can OpenAI o1 Pro process?

OpenAI o1 Pro accepts the following input types: text, image. It produces: text.

Does OpenAI o1 Pro support tool use (function calling)?

Yes, OpenAI o1 Pro supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.

Does it work with React / Vue / Vanilla JS / Node / etc.?

Yes — the OpenAI o1 Pro API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.

Get started with Puter.js

Add OpenAI o1 Pro to your app without worrying about API keys or setup.

Read the Docs View Tutorials