Last refreshed 2026-05-10. Next refresh: weekly.
Why use GPT-4 on OpenAI API?
OpenAI API offers GPT-4 with pay-as-you-go pricing at $30.00/1M input tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.
Compare GPT-4 across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport OPENAI_API_KEY=...import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(gpt-4Request example
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="gpt-4",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
- The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.
Compare GPT-4 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $30.00 | $60.00 |
| Azure OpenAI | $30.00 | $60.00 |
| Salesforce Einstein Generative AI | — | — |
| OpenRouter | $30.00 | $60.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $30.00 |
| Output tokens | $60.00 |
Capabilities
About GPT-4
OpenAI's original GPT-4 model with strong reasoning and general knowledge. Foundation model for many applications.
FAQ
What does GPT-4 cost on OpenAI API?
On OpenAI API, GPT-4 costs $30 per 1M input tokens and $60 per 1M output tokens.
What is the context window for GPT-4 on OpenAI API?
GPT-4 supports a 8,000 token context window on OpenAI API.
How does OpenAI API compare to other GPT-4 providers?
GPT-4 is available from 4 providers. The cheapest input pricing is $30/1M tokens from OpenAI API.
Who created GPT-4?
GPT-4 was created by OpenAI as part of the GPT-4 model family.
Is GPT-4 open source?
GPT-4 is not open source; the seed data lists it as proprietary.