OpenAI: gpt-oss-120b

GPT

Text

Paid

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized to run on a single H100 GPU with native MXFP4 quantization. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation.

Parameters

120b

Context Window

131,072

tokens

Input Price

$0.039

per 1M tokens

Output Price

$0.19

per 1M tokens

Capabilities

Model capabilities and supported modalities

Performance

Reasoning

Excellent reasoning capabilities with strong logical analysis

Math

Coding

Knowledge

Modalities

Input Modalities

text

Output Modalities

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LLM Price Calculator

Calculate the cost of using this model

Input Tokens (0.00000004/token)$0.000058

Output Tokens (0.00000019/token)$0.000570

Common Scenarios:

Input Cost:$0.000058

Output Cost:$0.000570

Total Cost:$0.000628

Estimated usage: 4,500 tokens

Monthly Cost Estimator

Based on different usage levels

Light Usage

$0.0023

~10 requests

Moderate Usage

$0.0229

~100 requests

Heavy Usage

$0.2290

~1000 requests

Enterprise

$2.2900

~10,000 requests

Note: Estimates based on current token count settings per request.

Last Updated: 2026/02/15