OpenAI GPT 120B APIPricing, Parameters & Features
Learn how to use OpenAI GPT 120B. See the API price, context window, parameters, capabilities, and examples. Test the model directly in AI API Console.
baseten-openai-gpt-oss-120bWhat is OpenAI GPT 120B?
Open-weight GPT model for self-hosted reasoning and instruction-following workloads
You can send the model a prompt and receive a response. Depending on the model features, you can also send images, use tools, and ask for structured data.
AI API Console brings the important model information into one place, so you can understand the API before you start building.
Everything in one place
Check pricing, limits, parameters, features, and API examples without jumping between pages.
OpenAI GPT 120B specifications
The main technical details developers should know before using the OpenAI GPT 120B API.
The company that provides this model.
The identifier used in API requests.
The amount of information the model can work with.
Types of input supported by this model.
The main type of response generated.
Use the model from your own application.
What can OpenAI GPT 120B do?
These are common features developers can use when working with the model API.
Text Generation
Create answers, summaries, explanations, ideas, and other text.
Vision
Send supported images and ask the model to understand them.
Structured Output
Return information in a predictable structured format such as JSON.
Streaming
Receive the response as it is generated instead of waiting for everything.
API Testing
Test prompts and settings before adding the model to your application.
OpenAI GPT 120B API pricing
API cost is based on tokens. Input tokens are the information you send to the model. Output tokens are the information the model generates.
Tokens sent to the model.
Tokens generated by the model.
Your final API bill depends on how many tokens your application uses. Always check the provider's latest pricing before using a model in production.
OpenAI GPT 120B API parameters
Parameters let you control how the model creates its response. Supported parameters can change between models.
temperatureControls how varied the response can be.
top_pControls how many possible next tokens are considered.
max_output_tokensSets the maximum size of the generated response.
streamReturns the response while it is being generated.
OpenAI GPT 120B API example
Here is a simple example of an API request. You can use the same idea in your own application.
curl https://bridge.baseten.co/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $API_KEY" \
-d '{
"model": "baseten-openai-gpt-oss-120b",
"messages": [
{
"role": "user",
"content": "Explain artificial intelligence simply."
}
]
}'OpenAI GPT 120B API questions
What is OpenAI GPT 120B?
OpenAI GPT 120B is an AI model from Baseten that developers can use through an API to build AI-powered applications.
How much does OpenAI GPT 120B cost?
OpenAI GPT 120B uses token-based API pricing. Input and output tokens have different prices.
What is the OpenAI GPT 120B context window?
OpenAI GPT 120B has a context window of 128,072 tokens based on the current model configuration.
What is the OpenAI GPT 120B model ID?
The model ID used by this page is baseten-openai-gpt-oss-120b.
How can I test OpenAI GPT 120B?
You can use the AI API Console playground to test prompts, parameters, and API responses.
Does OpenAI GPT 120B support images?
Yes, OpenAI GPT 120B supports image input according to the capabilities configured for this model.