LLM Reference
OpenAI API

Using GPT-4o (2024-11-20) on OpenAI API

Implementation guide · GPT-4o · OpenAI

Serverless

OpenAI API exposes GPT-4o (2024-11-20) through model ID gpt-4o-2024-11-20. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-05-10. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenAI API and generate an API key.
  2. 2
    Use the OpenAI API SDK or REST API to call gpt-4o-2024-11-20 — see the documentation for request format.
  3. 3
    You'll be billed $2.50/1M input, $10.00/1M output tokens. See full pricing.

Code Examples

Install
pip install openai
API key
OPENAI_API_KEY
Model ID
gpt-4o-2024-11-20

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="gpt-4o-2024-11-20",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on OpenAI API

TypePrice (per 1M)
Input tokens$2.50
Output tokens$10.00

Capabilities

Structured Outputs

About GPT-4o (2024-11-20)

OpenAI: GPT-4o (2024-11-20) available via OpenRouter. Pricing: $2.5/1M input, $10/1M output.

Model Specs

Released2024-11-20
Context128k
ArchitectureDecoder Only
Knowledge cutoff2023-10

Provider

OpenAI API
OpenAI API

OpenAI

San Francisco, California, United States