OpenAI o1 Pro API

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

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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 N/A

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

 

API Usage Example

Add OpenAI o1 Pro to your app with just a few lines of code.
No API keys, no backend, no configuration required.

// 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>

View full documentation →

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Frequently Asked Questions

What is this OpenAI o1 Pro API about?

The OpenAI o1 Pro API gives you access to OpenAI's chat model through Puter.js. With just a few lines of JavaScript, you can integrate OpenAI o1 Pro into any web app or Node.js project — no API keys, no backend, and no configuration required.

Who created OpenAI o1 Pro?

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

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.

How much does it cost?
The OpenAI o1 Pro API is available through the User-Pays Model. As a developer, you can add the OpenAI o1 Pro API to your app for free — your users pay for their own AI costs directly.
Price per 1M tokens
Input$150
Output$600
How do I access the OpenAI o1 Pro API?

You can access the OpenAI o1 Pro API with just a few lines of JavaScript — no API keys, no backend, and no configuration required. Include the Puter.js library in your project and start making calls right away. For more details, check out our documentation.

Does the OpenAI o1 Pro API 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