Today · announcement October 20

Google adds Claude to Antigravity; no price list is given

Google Cloud adds Claude Opus 5.5 and Claude Sonnet 5.5 to Antigravity, Google's agentic development tool; third-party models don't draw on Gemini Enterprise's pooled quota and are billed by usage instead. Antigravity has a command line and extensions for VS Code and JetBrains. The announcement says: "Third-party partner models do not draw from the pooled Gemini Enterprise Standard and Plus edition monthly token quota. Instead, usage is billed on a pay-as-you-go basis." Overage billing has to be turned on first (Google Cloud, 2026-10-20). The announcement also says lightweight Gemini models handle context management and summarization in the background, consuming Gemini tokens that are billed. The announcement gives no price list or regional availability for Claude inside Antigravity. On October 8, Google Cloud CEO Thomas Kurian said in his Gemini at Work keynote that the model behind a Gemini agent can be chosen separately, and that customers could already route between Gemini and Anthropic's Claude. Our read: Antigravity applies Kurian's model-choice approach to a development tool. How we checked →

Concept illustration on a pale green background with two scenes, each on a light grey shelf: on the left, a plate lettered GEMINI with a multicoloured four-pointed star sits above an open jar lettered QUOTA with its lid lying beside it, and an arc of small blue squares curves from the jar to the top of a grey box lettered GOOGLE CLOUD ANTIGRAVITY with a multicoloured cloud icon. On the right, plates lettered CLAUDE OPUS 5.5 (with an orange starburst) and CLAUDE SONNET 5.5 sit above a lidded jar lettered QUOTA and a second grey box lettered GOOGLE CLOUD ANTIGRAVITY, while a hand in a dark sleeve at the top right holds a red-brown coin purse from which a line of gold coins falls toward the top of that box.

Source and checks

This item ran in the brief of Oct 21, 2026, alongside 15 other items. How we checked it, the quote checks and what was still missing that day are on that issue's How we checked page.

Cite this item

SecondSource (2026). "Google adds Claude to Antigravity; no price list is given." https://secondsource.io/en/product/2026-10-21-1/. Accessed access date.