---
title: "Google Gemini API Antigravity Agent antigravity-preview-05-2026 deprecated, shuts down October 5, 2026: 2026-10-05 | Harbyn"
description: "Google Gemini API Antigravity Agent antigravity-preview-05-2026 deprecated, shuts down October 5, 2026, effective Oct 5, 2026; replacement: antigravity-preview-09-2026."
canonical: "https://harbyn.com/changes/google-gemini/2026-09-17-antigravity-agent-tool-parameters-and-file-editing-behavior-changed"
last-updated: 2026-09-29
---

# Google Gemini API Antigravity Agent antigravity-preview-05-2026 deprecated, shuts down October 5, 2026

Markdown version of <https://harbyn.com/changes/google-gemini/2026-09-17-antigravity-agent-tool-parameters-and-file-editing-behavior-changed>.

Deprecation - Google Gemini API. high severity. In effect.

antigravity-preview-09-2026 replaces antigravity-preview-05-2026, which shuts down on October 5, 2026. Remote-sandbox users reading only output\_text or model\_output steps just update the agent string; local tools and function\_call parsers must handle renamed built-in tools with PascalCase parameters and line-range file edits.

The deadline passed on Oct 5, 2026.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Google Gemini API](https://harbyn.com/vendors/google-gemini.md) |
| Kind | Deprecation |
| Severity | high |
| Status | In effect |
| Announced | Sep 17, 2026 |
| Effective | Oct 5, 2026 |
| Added to Harbyn | Sep 29, 2026 |
| Lead time | 6 days of warning |
| Model IDs | `antigravity-preview-05-2026` |
| Replacement | `antigravity-preview-09-2026` |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

The scanner reads your repository on your machine and reports every file and line that uses the identifiers above, with the replacement. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://ai.google.dev/gemini-api/docs/changelog> (changelog, fetched 2026-09-29 02:31 UTC, sha256 `b1e945b281bfc9f8d194032b017da205d34163f41fd6ec83f65aa778bbd1fa2c`)

## Related changes

### More from Google Gemini API

- [Gemini 2.5 models access update](https://harbyn.com/changes/google-gemini/2026-09-18-gemini-2-5-models-access-update.md) (Behavior change, announced Sep 18, 2026)
- [antigravity-preview-05-2026 shutdown 2026-10-05](https://harbyn.com/changes/google-gemini/2026-09-21-antigravity-preview-05-2026-shutdown-2026-10-05.md) (Retirement, effective Oct 5, 2026)
- [embedding-001 and 3 more shutdown 2025-10-30](https://harbyn.com/changes/google-gemini/2026-09-21-embedding-001-shutdown-2025-10-30.md) (Retirement, effective Oct 30, 2025)
- [embedding-2-preview shutdown 2026-08-10](https://harbyn.com/changes/google-gemini/2026-09-21-embedding-2-preview-shutdown-2026-08-10.md) (Retirement, effective Aug 10, 2026)

### Changes at other vendors

- [AWS Lambda: Python 3.10 runtime deprecation](https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-10-runtime-deprecation.md) (effective Oct 31, 2026)
- [Jira / Atlassian Cloud: Atlassian Analytics dashboard subscriptions being removed](https://harbyn.com/changes/atlassian-jira/2026-08-10-atlassian-analytics-dashboard-subscriptions-being-removed.md) (effective Nov 2, 2026)
- [Google Cloud Run and Functions: .NET 8 runtime deprecation](https://harbyn.com/changes/google-cloud/2026-10-08-net-8-runtime-deprecation.md) (effective Nov 10, 2026)
- [GitHub: X-GitHub-Stateless-S2S-Token header ignored from 2026-11-30](https://harbyn.com/changes/github/2026-10-02-x-github-stateless-s2s-token-header-ignored-from-2026-11-30.md) (effective Nov 30, 2026)

[All upcoming deadlines](https://harbyn.com/deadlines.md)