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Nvidia

GPT-OSS-120B API

Nvidia
About

Build advanced reasoning agents with GPT-OSS-120B, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge. Access GPT-OSS-120B via the Nvidia API with up to 8K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
No
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
8K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

GPT-OSS-120B by Nvidia costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
openai/gpt-oss-120b
Provider
Nvidia
Family
gpt-oss
Release Date
Aug 4, 2025
Knowledge Cutoff
Aug 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NVIDIA_API_KEY
API Base URL
https://integrate.api.nvidia.com/v1
Documentation