tools • Text Generators

Introducing gpt-oss-120b & gpt-oss-20b: Open-Weight Models

Explore the new gpt-oss-120b and gpt-oss-20b models with open weights. - 2026-01-02

Introducing gpt-oss-120b & gpt-oss-20b: Open-Weight Models

We are excited to announce the release of gpt-oss-120b and gpt-oss-20b, two groundbreaking open-weight reasoning models that aim to enhance various AI applications. These models are licensed under the Apache 2.0 license, allowing for broad usage and experimentation by developers and researchers alike.

The gpt-oss-120b model features 120 billion parameters, which significantly boosts its reasoning capabilities. Meanwhile, gpt-oss-20b, with its streamlined architecture of 20 billion parameters, offers quicker processing times while maintaining strong performance in generating human-like text. Both models facilitate a diverse range of applications, from content creation to advanced conversing agents.

Users can integrate these models with ease, as they are aligned with our gpt-oss usage policy, ensuring responsible deployment in various environments. This innovative release highlights our commitment to advancing open-source AI technologies and fostering a collaborative ecosystem for future developments.

Why This Matters

Understanding the capabilities and limitations of new AI tools helps you make informed decisions about which solutions to adopt. The right tool can significantly boost your productivity.

Who Should Care

DevelopersCreatorsProductivity Seekers

Sources

openai.com
Last updated: January 2, 2026

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