Authentication method mismatch during account registration

Welcome to the community!

This looks like an identity provider mismatch.

Here’s one relevant article I found that you can check:

https://help.openai.com/en/articles/10489721-authentication-troubleshooting-faq

OpenAI’s login docs usually suggest trying every possible original method in a clean/private browser session: email/password, Google, Microsoft, Apple, etc.

Since this is a corporate email and you’re being automatically redirected to Google, I’d also ask your company/admin whether the domain is configured with SSO or managed authentication.

If you never completed registration or set a password, Support may need to inspect or clear the stuck/partial auth state. In that case you can contact support through Help.