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GPT-OSS 20B

Open-weight reasoning and agentic model for capable local systems.

SAFE RAM FLOOR20 GB

MODEL FILE~14 GB

INPUTText

LICENCEApache 2.0

Will it run?

LocalLens uses 20 GB as a conservative starting floor for this Ollama profile. That means the model file, runtime and operating system have some space. It does not promise speed. Your processor, graphics support, context length and other open programs still matter.

Check it against your RAM →

What is it useful for?

ReasoningCodingTools

Verified Ollama setup

Install Ollama from its official website, then run:

ollama run gpt-oss:20b

Start with a real but non-sensitive task. Check the answer, response time and device temperature before using private data.

Evidence and limits

The published maximum context is 128K published max. Maximum context is not a promise that the full context fits at the minimum RAM floor.

Verify this model on Ollama ↗