GPT-4.5
The largest model in OpenAI’s GPT series.
OpenAI
2025-02-27
Closed weightsRank: 78/200138Epoch Capabilities Index
About ECI90% CI: 134-142
GPT-4.5 performance
Top performing model
The largest model in OpenAI’s GPT series.
OpenAI2025-02-27Closed weights