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GPT-OSS 120B API
CHAT

GPT-OSS 120B API

All You Need To Know About GPT-OSS 120B API

Overview

Model Provider:OpenAI
Model Type:CHAT
State:Ready

Key Specs

Quantization:BF16
Parameters:120B
Context:128k
Pricing:$0.10 input / $0.40 output
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Introduction

The GPT-OSS 120B API provides access to an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI, built for high-reasoning, agentic workflows, and general-purpose production use cases. Its efficient MoE design activates only 5.1B parameters per forward pass and is optimized to run on a single H100 GPU using native MXFP4 quantization for exceptional performance and cost efficiency.

Released under the Apache 2.0 license, the GPT-OSS 120B API delivers full model transparency with configurable chain-of-thought reasoning and native tool use, including function calling and browsing. This enables organizations to customize behavior while maintaining complete data control for secure, private, and compliant deployments.

GPT-OSS 120B API Usage

Model

Endpoint

openai/gpt-oss-120b


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        curl -X POST https://api.canopywave.io/v1/chat/completions \
      
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          -H "Content-Type: application/json" \
      
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          -H "Authorization: Bearer $CANOPYWAVE_API_KEY" \
      
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          -d '{
      
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            "model": "openai/gpt-oss-120b",
      
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            "messages": [
      
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              {"role": "user", "content": "tell me a story"}
      
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            ],
      
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            "max_tokens": 300,
      
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            "temperature": 0.7
      
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          }'
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