GPT OSS Safeguard 120BOpenAI is an American artificial intelligence company based in San Francisco, established in December 2015. It develops the GPT family of language models, the o-series reasoning models, DALL-E and Sora for images and video, and Whisper for speech, and runs the ChatGPT assistant.
- Founded
- 2015
- Type
- Private company
- Founders
- Elon Musk, Sam Altman, Ilya Sutskever, Greg Brockman and Trevor Blackwell
- AI lab
- Inference provider
- 121 hosted endpoints
Model family

gpt-oss
OpenAI is an American artificial intelligence company based in San Francisco, established in December 2015. It develops the GPT family of language models, the o-series reasoning models, DALL-E and Sora for images and video, and Whisper for speech, and runs the ChatGPT assistant.
Latest gpt-oss models
Models in this family
4 catalogued models
4 models · 1–4
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
| October 29, 2025 | 131K | — | — | 120B | Text | text → text | Open weights | ||
| October 29, 2025 | 131K | $0.075 | $0.30 | 20B | Text | text → text | Open weights | ||
| August 5, 2025 | 131K | $0.15 | $0.60 | 120B | Text | text → text | Open weights | ||
| August 5, 2025 | 131K | $0.03 | $0.13 | 20B | Text | text → text | Open weights |