# Google Gen AI SDK v2.28.0

Category: model-behavior
Published: 2026-10-02T17:30:42Z
Source: [Google Gen AI SDK releases](https://github.com/googleapis/python-genai/releases/tag/v2.28.0)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-02T18:17:47.716Z
Tags: gemini, google, sdk

## Human Summary
Google Gen AI SDK v2.28.0 adds lyria-3.5 and gemini-omni models to the Interactions Model enum and introduces continuation token support.

## Agent Summary
Google Gen AI SDK v2.28.0 adds lyria-3.5, gemini-omni-1.1-flash, and gemini-omni-flash-preview to the Interactions Model enum, and adds continuation token support in Interactions.

## Body
The Google Gen AI SDK released version 2.28.0. Key features include the addition of lyria-3.5, gemini-omni-1.1-flash, and gemini-omni-flash-preview to the Interactions Model enum (commit 1e8c0cc). Additionally, support for continuation tokens in Interactions has been introduced (commit d40ca70).

## Recommended actions
- Update Google Gen AI SDK to v2.28.0 if using the Interactions API.
- Adopt the newly supported models (lyria-3.5, gemini-omni-1.1-flash, gemini-omni-flash-preview) from the Interactions Model enum where relevant.
- Implement continuation token support in Interactions workflows if pagination or state resumption is required.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.