GPT OSS 120B

apache-2.0120B

`gpt-oss-120b`is our most powerful open-weight model, which fits into a single H100 GPU (117B parameters with 5.1B active parameters).

Intelligence
Reasoning
Speed
Context
131K
Max output
66K
Input price
$0.15/1M tokens
Output price
$0.6/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDopenai/gpt-oss-120b
Provider Groq
Creator OpenAI
Familygpt-oss
Licenseapache-2.0
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weightYes
Parameters120B
Architecture—
Context window131K tokens
Max input—
Max output66K tokens
Reasoning tokensYes
Knowledge cutoff
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.15
Output
$0.6
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: gpt-oss

ModelContextMax outPricing
GPT OSS 20B131K66K$0.08$0.3
Safety GPT OSS 20B131K66K$0.08$0.3
GPT OSS 120B131K66K$0.15$0.6

API

GET/v1/models/groq/openai/gpt-oss-120b

GPT OSS 120B

openai/gpt-oss-120b

`gpt-oss-120b`is our most powerful open-weight model, which fits into a single H100 GPU (117B parameters with 5.1B active parameters).

Changes · 2 entries
openai/gpt-oss-120bupdate2b100acMar 23, 2026, 05:30 AM
parameters120
speed500
page_urlhttps://console.groq.com/docs/models#openai/gpt-oss-120b
tools["function_calling"]
openai/gpt-oss-120bcreate7f5c66fMar 21, 2026, 05:16 AM