GPT OSS 120B

OpenAI's larger open-weight reasoning model is designed for analysis, coding and tool use. Three reasoning levels let applications trade speed for deeper analysis; the weights can run on a single GPU with 80 GB of memory.

CONTEXT128K

MAX OUTPUT64K

LAST SCAN13 Nov 2026

🏆First observed free at Groq on 21 Sep 2026.

Open weights Text

Free aggregator routes

These are the aggregator routes recorded in the current or last published catalog. Each route keeps its exact model ID and thinking information.

Limits above: Groq. Available gateway routes are listed below.

Groq

Info

Thinking: Not advertised by this API

Model ID · Groq APIopenai/gpt-oss-120b

Model sources

Groq endpoint documentation
Groq GPT-OSS reasoning behavior and effort controls

Use it through LiteLLM

Import the current LiteLLM-compatible YAML and use the exact model ID shown above. The catalog is generated from the same reviewed scan data as the download.

Download LiteLLM YAML

Sources & references

Creator's model card
Groq endpoint documentation
Groq GPT-OSS reasoning behavior and effort controls