Possible Bug with Agent Creation & PHP File Upload

I have the same experience with json or php files all day. If it helps, I tried the html and txt suffix - passes.

I use PHP package - GitHub - openai-php/client: ⚡️ OpenAI PHP is a supercharged community-maintained PHP API client that allows you to interact with OpenAI API.

With roughly this setup:

$fileResponse = $this->gptClient->files()
    ->upload([
        'purpose' => 'assistants',
        'file' => fopen($filePath, 'r'),
    ]);