OpenAI Open Models
gpt-oss-120b and gpt-oss-20b open-weight language models
OpenAI Open Models launched on August 6, 2025 with 480 votes, #45 of 8,530 launches that month and more than 99% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
OpenAI Open Models are Apache 2.0 licensed open-weight language models available in two sizes: gpt-oss-120b and gpt-oss-20b. Designed for developers, these models support powerful reasoning and agentic tasks. Being open-weight allows developers to download, modify, and deploy them independently, making them suitable for various AI applications where flexibility and customization are priorities.
written from the facts on this page · September 2026
From the sources
Apache 2.0 licensed open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases.
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