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Antigravity CLI error mentions unknown "Barium" model, possibly Argon's successor

A user hit an Antigravity CLI error about a missing "Barium" model, speculating it is Argon's successor or a new Flash model under A/B test, and finds Argon good at project management but unreliable on details.

Mira
@_Mira___Mira_Archived 8 days agoOriginally posted 2026.10.20
Antigravity CLI error mentions unknown "Barium" model, possibly Argon's successor
Mira @_Mira___Mira_Originally posted 2026.10.20
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My Google Antigravity CLI showed an error about not being able to find a "Barium" model in the middle of work. I wonder if they were A/B testing the successor to Argon? Or maybe it's the new generation Flash model. Argon is good at keeping GPT on-track - things are moving a LOT faster now that I have Argon doing project management - but it needs someone else doing the detail work and someone reviewing its plans. It's the least trustworthy model out of GPT, Claude, and Gemini.

x.com/_mira___mira_/status/2112331704123969867Archived 2026.10.20 09:59