No, a personal key from a free (or Plus) ChatGPT account is not an OpenAI Platform API key and cannot be used with the https://api.openai.com endpoint required by Agent Studio.
Only API keys created in the OpenAI Platform dashboard, that are backed by active billing or credits, are accepted.
The OpenAI REST API at https://api.openai.com only accepts keys created in the Platform dashboard at https://platform.openai.com/account/api-keys, and only if the account has API access and, in most regions, valid billing set up.
Recommended workaround
Sign in at
platform.openai.com, explicitly enable API access if prompted, and create a new secret key under “API keys”.Confirm that billing or credits are configured for that platform account; otherwise the key may exist but calls will fail with errors related to allowance or account status.
In Algolia’s “OpenAI compatible” provider configuration, keep the base URL as
https://api.openai.comand use the newly created platform API key, not anything derived from the ChatGPT web UI or a free ChatGPT login.