Google Antigravity Agent Preview: May 2026 Release
Google released the Antigravity Agent preview in May 2026. This managed agent plans, codes, and browses within a sandbox. Learn what is confirmed.
Official Announcement and Scope
The source event date for the release of antigravity-preview-05-2026 is May 19, 2026. This historical date distinguishes the original announcement from the current publication date of this article. Google identified this release as a general-purpose managed agent available in public preview. The provider is listed as Google, and the model belongs to the Gemini family.
- Model identifier: antigravity-preview-05-2026
- Status: Public preview
- Input modalities: Text
- Output modalities: Text
Documented Capabilities and Limits
According to the official changelog, the Antigravity agent can autonomously plan, reason, write and execute code, manage files, and browse the web inside its sandbox container. The technical specifications confirm a context window of 1,048,576 tokens and a maximum output of 65,536 tokens. The field openWeights is set to false, which records that open weights are not confirmed. This does not establish that local installation is impossible or that API access is mandatory. Pricing information is null in the source data, so no cost structure is established.
- Context Window: 1,048,576 tokens
- Max Output Tokens: 65,536
- Open Weights: Not confirmed
- Pricing: Not specified
Evaluation Procedure for Engineers
To evaluate this model, engineers should design tests based on the documented capabilities. First, test the agent's ability to plan and execute code by providing a simple programming task and measuring the accuracy of the generated code. Second, validate file management functions by instructing the agent to create or modify files within the sandbox and compare the resulting file states against expected outputs. Third, measure web browsing functionality by requesting specific information from a controlled website and checking if the agent retrieves the correct data. Finally, compare these results against baseline expectations to determine if the agent meets specific operational requirements. These steps verify the stated features without inferring unverified benefits.
Primary sources
Frequently asked questions
What is the exact date of the Antigravity Agent preview release?
The source facts state that the event occurred on May 19, 2026. This is the historical date of the announcement, distinct from the date this article was published.
Does the source confirm that the model has open weights?
No. The source data indicates openWeights=false, which means open weights are not confirmed. It does not provide evidence that local installation is impossible or that the model must be accessed via a specific hosting arrangement.