GPT-5 is an AI model developed by OpenAI (United States), first published in August 2025. It works in the multimodal, language and vision domain, on tasks such as language modeling/generation and question answering.
Training it took an estimated 6.6×10²⁵ FLOP of compute.
Access: API access. Its weights are not openly released. Epoch AI rates the confidence of this record as speculative.
| 01 | Epoch Capabilities Index | ECI Score | 150 |