accidentally saw “gpt-6 astra” in the normal chat model picker?

A user reported briefly seeing an experimental model picker in ChatGPT, featuring "gpt-6 astra" with "light," "extended," and "heavy" reasoning modes. Upon selection, the chat switched to "work mode" and used "gpt-6 luna with max reasoning." The user noted that these reasoning labels don't align with documented astra/luna options, suggesting it might have been an internal or A/B test UI configuration that has since disappeared and cannot be reproduced.

This is the first public account of "gpt-6 astra" appearing in a model picker, unlike previous mentions of "gpt-6 luna" in internal testing.