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OpenAI🇺🇸

GPT OSS 20B

OpenAI's smaller open-weight reasoning model supports coding, text analysis and function calls, with three reasoning levels. Its compact memory footprint allows local deployment with about 16 GB of memory, unlike the much larger 120B version.

CONTEXT128K
MAX OUTPUT64K
LAST SCAN13 Nov 2026
🏆First observed free at Groq on .
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-20b
LLM7
Info
Thinking
Supported
Model ID · LLM7 APIgpt-oss:20b
Context here
128K
Max output here
Not documented

Model sources

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