
Antigravity IDE 2.6.0 Dropped Its Own Language Server: It Now Runs the agy CLI Instead
Antigravity IDE 2.6.0 drops its 135 MB language server. It now downloads its own copy of the agy CLI and runs agy --hub as its backend.
Editor and QA Engineer
Lesia Kapliuk is the editor of AI Watch. She has edited technology publications since 2015, building a library of Windows guides in more than forty languages with freelance technical writers and managing its multilingual editions. She also edits win10.support.
She is a QA engineer by profession and has been testing software since 2020: manual, automation, performance and security testing, mainly in Python. She holds an engineering degree from the National Technical University of Ukraine "Kyiv Polytechnic Institute" and completed a software testing programme at EPSI, l'école d'ingénierie informatique, in 2024.
Before an article is published or updated, Lesia checks every claim against the data from our test lab or against the original source, makes sure each screenshot comes from real output, and asks for anything that cannot be confirmed to be removed or labelled as unconfirmed. When a product changes after publication, she adds a dated update note instead of rewriting the original text.
Write to [email protected]. Corrections are published with the date of the change.

Antigravity IDE 2.6.0 drops its 135 MB language server. It now downloads its own copy of the agy CLI and runs agy --hub as its backend.

Google removed Gemini 3.1 Pro from Antigravity on Oct 13 and launched Gemini 4 Argon for Ultra only. Update: Argon reached Pro on Oct 15.

Antigravity 2.23.0 ships gemini-4-argon with Low, Medium and High variants and model picker labels, as Gemini 3.1 Pro and 3.6/3.7 Flash leave.

A gemini-3.1-ultra model string appeared in Antigravity CLI 1.3.1. We verified it in the binary, checked agy models and tried to run it.