When was this update announced?

The release date cited in this guide is 2026-09-02.

Is the update available to every user?

Availability can depend on product, account, region, and rollout stage. Check the official source linked in the guide.

What source supports this guide?

The guide links to the official announcement from Google.

Gemini model updates · 2 min read

Gemini 3.8 Flash and Flash Cyber: Google’s September Model Updates

A sourced overview of Google’s Gemini 3.8 Flash releases and the restricted cyber-defender path.

Release date: 2026-09-02. This update is based on the vendor’s announcement and was added to the Worksflow.ai guide on October 11, 2026.

Google introduced Gemini 3.8 Flash and Gemini 3.8 Flash Cyber on September 2, 2026. Its announcement positions Flash for reasoning and coding work, while Flash Cyber is offered through a program for trusted cyber defenders rather than as an unrestricted model.

What the update means

Check Google’s API and program pages for the current availability and supported use cases. When comparing the models, keep ordinary developer access separate from the more restricted cyber offering.

What to verify before you update a workflow

Confirm the exact model or product identifier in the vendor’s live documentation.
Check whether the announcement describes a general release, preview, or restricted rollout.
Test the same representative tasks, tool calls, and failure cases used in your current workflow.
Record the vendor’s source and the date your team checked it.

Official sources

Google’s official release note

Details and availability can change after publication. Recheck the source before acting on this guide.