Error with CreateEvalTaskMutation: OpenAI Model Setup Issue

hey everyone! I'm trying to create an eval - task but I'm getting this error:

Error creating task Relay request for CreateEvalTaskMutation failed by the following reasons: 1. OpenAI requires a modelName createEvalTask(input: $input) { ^^^

I just added OpenAI's as provider and added a custom model 'gpt-4o', but still doesn't work. Any ideas what setup I'm missing?