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OpenAI GPT OSS 120B

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Built with a Mixture-of-Experts design, delivers efficient, transparent reasoning, tool use, and agentic capabilities, even with 128K token context windows.

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openaiOpenAI GPT OSS 120B

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Settings

Advanced settings to control the behavior of the model.

A system prompt that will be prepended to all chat messages to guide the model's behavior. Automatically gets saved to your playground repository.

Controls randomness: 0 = deterministic, 2 = very creative

Maximum length of the response (1-128000 tokens)