Migrate
From OpenAI
Point an OpenAI-compatible client at plaingateway.
Set the client's base URL to https://plaingateway.com/api/v1 and its API key to a plaingateway key.
Use a catalog model ID such as openai/gpt-5.6-luna.
Chat completions, completions, and Responses have their own endpoint pages.
Read usage.cost for our charge and X-PG-Host for the host.