Using o1-pro on OpenAI API

Implementation guide · o1 · OpenAI

Serverless

OpenAI API exposes o1-pro through model ID o1-pro. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-04-19. Next refresh: weekly.

Quick Start

1
Create an account at OpenAI API and generate an API key.
2
Use the OpenAI API SDK or REST API to call o1-pro — see the documentation for request format.
3
You'll be billed $150.00/1M input, $600.00/1M output tokens. See full pricing.

API Portal Documentation Pricing Model Card

Code Examples

Install

pip install openai

API key

OPENAI_API_KEY

Model ID

o1-pro

Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".

import os
from openai import OpenAI

client = OpenAI()  # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
    model="o1-pro",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on OpenAI API

Type	Price (per 1M)
Input tokens	$150.00
Output tokens	$600.00

Capabilities

Structured Outputs

About o1-pro

OpenAI: o1-pro available via OpenRouter. Pricing: $150/1M input, $600/1M output.

Full model details →

Model Specs

Released2024-12-05

Context200k

ArchitectureDecoder Only

Knowledge cutoff2023-10

OpenAI

San Francisco, California, United States