# Hugging Face — Welcome GPT OSS, the new open-source model family from OpenAI!

- Company: Hugging Face (huggingface.co)
- Announced: 2025-08-05T00:00:00+00:00
- Category: open-weight-release
- Subject: Platform
- Open weights: yes
- Models affected: gpt-oss-120b, gpt-oss-20b
- License: Apache 2.0
- Context window: 128K context
- Source: https://huggingface.co/blog/welcome-openai-gpt-oss
- Record: https://forck.live/items/1643-welcome-gpt-oss-the-new-open-source-model-family-from-openai

OpenAI releases GPT OSS, an open-weights model family with two mixture-of-experts models (gpt-oss-120b and gpt-oss-20b), licensed under Apache 2.0, featuring a 128K context window and 4-bit quantization for efficient deployment.

## Evidence

Verbatim from https://huggingface.co/blog/welcome-openai-gpt-oss:

> GPT OSS is a hugely anticipated open-weights release by OpenAI, designed for powerful reasoning, agentic tasks, and versatile developer use cases.

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