gpt-oss

by openai · Developer Tools

gpt-oss-120b and gpt-oss-20b are two open-weight language models by OpenAI

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Try gpt-oss · Guides · Model card · OpenAI blog Download gpt-oss-120b and gpt-oss-20b on Hugging Face Welcome to the gpt-oss series, OpenAI's open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases. We're releasing two flavors of these open models: — gpt-oss-120b — for production, general purpose, high reasoning use cases that fit into a single 80GB GPU (like NVIDIA H100 or AMD MI300X) (117B parameters with 5.1B active parameters) — gpt-oss-20b — for lower latency, and local or specialized use cases (21B parameters with 3.6B active parameters) Both models were trained using our harmony response format and should only be used…

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LicenseApache-2.0
On GitHubsince 2025

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