Last refreshed 2026-05-10. Next refresh: weekly.
Why use GPT-4o on Azure OpenAI?
Azure OpenAI offers GPT-4o with competitive pricing. Azure OpenAI Service hosts OpenAI's GPT-4o, GPT-4, GPT-3.5, and embedding models on Microsoft Azure with enterprise SLAs.
Compare GPT-4o across 5 providers to find the best fit for your use caseInput / 1M
-
Output / 1M
-
Cache
Not sourced
Batch
in $1.25 / out $5.00
Setup recipe
Python + curlInstall
pip install openaiAuth
export AZURE_OPENAI_API_KEY=...Call
import os
from openai import AzureOpenAI
client = AzureOpenAI(
azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"], # e.g. https://{resource}.openai.azure.comModel ID
gpt-4oRequest example
import os
from openai import AzureOpenAI
client = AzureOpenAI(
azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"], # e.g. https://{resource}.openai.azure.com
api_key=os.environ["AZURE_OPENAI_API_KEY"],
api_version="2024-02-01"
)
response = client.chat.completions.create(
model="gpt-4o", # your deployment name
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- gpt-4o is your Azure deployment name, not the underlying model name. Deployment names are set when you deploy a model in Azure AI Foundry / Azure OpenAI Studio.
- The examples expect AZURE_OPENAI_API_KEY; rename it only if your application config maps the new variable.
Compare GPT-4o Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Replicate API | $2.50 | $10.00 |
| OpenRouter | $2.50 | $10.00 |
| Azure OpenAI | — | — |
| OpenAI API | $2.50 | $10.00 |
| Vercel AI Gateway | $2.50 | $10.00 |
Capabilities
VisionMultimodalFunction CallingTool UseStructured OutputsCode ExecutionPrompt CachingBatch APIFine-tuning
About GPT-4o
OpenAI GPT-4o: Flagship multimodal model with vision, function calling, and broad capability. $2.50/M input, $10/M output.
FAQ
What is the context window for GPT-4o on Azure OpenAI?
GPT-4o supports a 128k token context window on Azure OpenAI.
How does Azure OpenAI compare to other GPT-4o providers?
GPT-4o is available from 5 providers. The cheapest input pricing is $2.5/1M tokens from Replicate API.
Who created GPT-4o?
GPT-4o was created by OpenAI as part of the GPT-4o model family.
Is GPT-4o open source?
GPT-4o is not open source; the seed data lists it as proprietary.
Get Started
Model Specs
Released2024-05-13
Context128k
ArchitectureDecoder Only
Knowledge cutoff2023-10