GPT-5
OpenAI · GPT-5 · closed weights
Facts and where they come from
| Released | 2025-08 | labofficial docssnapshot gpt-5-2025-08-07 |
|---|---|---|
| Licence | proprietary | labofficial docsweights not published |
| Total parameters | not disclosed | not disclosed |
| Active parameters | not disclosed | not disclosed |
| Context length | 400,000 tokens | labofficial docsmodel page: 400,000 context window |
Architecture
not disclosed No diagram or modelled costs: OpenAI has not disclosed the architecture or size.