# Google Gen AI SDK v2.25.0

Category: model-behavior
Published: 2026-09-22T03:06:24Z
Source: [Google Gen AI SDK releases](https://github.com/googleapis/python-genai/releases/tag/v2.25.0)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-12T10:17:34.109Z
Tags: gemini, google, sdk

## Human Summary
Google Gen AI SDK v2.25.0 introduces voice-related updates, including the Voices API resource, sample audio, and exposure of speech metadata and configuration types.

## Agent Summary
Google Gen AI SDK v2.25.0 adds the Voices API resource and sample audio to GAOS SDK, exposes SpeechMetadata, VoiceConfig.voice, and SpeechAnnotation, supports field.value syntax for map union value annotations, and fixes path parameter description sanitization in OpenAPI generation.

## Body
Google Gen AI SDK version 2.25.0 has been released with the following changes: Features: - Add sample audio to Voice in GAOS SDK (commit a011633) - Add Voices API resource to GAOS SDK (commit c45b94e) - Expose SpeechMetadata, VoiceConfig.voice, and SpeechAnnotation in public GenAI SDKs (commit a6d3243) - Support field.value field syntax for map add union value annotations (commit ad00721) - Update discovery doc (commit fa91716) - Wire voice into sdk (commit e1d68b4) Bug Fixes: - Sanitize path parameter descriptions in GAOS OpenAPI generation (commit 25b0094)

## Recommended actions
- Upgrade Google Gen AI SDK to version 2.25.0 to use the new Voices API and speech metadata configuration fields.

## 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.