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GPT OSS 120b

GPT OSS 120b

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About GPT OSS 120b

Advancing LLM capabilities with 117B parameters, 128K context length, and MoE architecture, ideal for high-reasoning tasks and agentic applications.

Technical Specifications

Model ID
gpt-oss-120b
Category
LLM Models
Task
Text Generation
Price
$0.1095 per million tokens
Added
August 5, 2025

Key Features

  • Chat completion and multi-turn conversation API
  • Streaming response with token-by-token output
  • Function calling and tool use support
  • System prompts and role-based messaging
  • JSON mode and structured output

Quick Start

Integrate GPT OSS 120b into your application with a single API call. Get your API key from the pricing page to get started.

import requests
import json
url = "https://modelslab.com/api/v7/llm/chat/completions"
headers = {
"Content-Type": "application/json"
}
data = {
"model_id": "gpt-oss-120b",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 1000,
"key": "YOUR_API_KEY"
}
try:
response = requests.post(url, headers=headers, json=data)
response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX)
result = response.json()
print("API Response:")
print(json.dumps(result, indent=2))
except requests.exceptions.HTTPError as http_err:
print(f"HTTP error occurred: {http_err} - {response.text}")
except Exception as err:
print(f"Other error occurred: {err}")

Pricing

GPT OSS 120b API costs $0.109500 per million tokens. Pay only for what you use with no minimum commitments. View pricing plans

Use Cases

  • AI chatbots and virtual assistants
  • Code generation and developer tools
  • Content writing and copywriting automation
  • Data analysis, summarization, and extraction

GPT OSS 120b FAQ

Advancing LLM capabilities with 117B parameters, 128K context length, and MoE architecture, ideal for high-reasoning tasks and agentic applications.

You can integrate GPT OSS 120b into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "gpt-oss-120b" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

GPT OSS 120b costs $0.109500 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started.

The model ID for GPT OSS 120b is "gpt-oss-120b". Use this ID in your API requests to specify this model.

Yes, ModelsLab offers a free tier that lets you try GPT OSS 120b and other AI models. Sign up to get free API credits and start building immediately.