July 14, 2025

Azure OpenAI custom LLM support: Added support for Azure-hosted OpenAI models in custom LLM configurations. When using an Azure endpoint, a new required field for API version is now available in the UI.
Genesys output variables: Added support for output variables when using Genesys integrations, enabling better call analytics and data collection.
Gemini 2.5 Preview Models Deprecation: Models gemini-2.5-flash-preview-05-20 and gemini-2.5-flash-preview-04-17 have been deprecated in Agents Platform as they are being deprecated on 15th July by Google. All agents using these models will automatically be transferred to gemini-2.5-flash the next time they are used. No action is required.
WebRTC rollout: Began progressive rollout of WebRTC capabilities for improved connection stability and performance. WebRTC mode can be selected in the React SDK and is used in 11.ai.
Keypad touch tone: Fixed an issue affecting playing keypad touch tones on Twilio. See keypad touch tone documentation.

Language collection navigation: Added quick navigation from language preview collections to view all available voices in that language, making it easier to explore voice options by language.

Preview streaming: Added new streaming endpoint for Text to Voice previews, allowing real-time streaming of generated voice previews via /v1/text-to-voice/{generated_voice_id}/stream.
Enhanced voice design: Added stream_previews option to voice design endpoint, enabling streaming-only preview generation for improved performance.
Improved parameter controls: Enhanced loudness, quality, and guidance scale parameters with better control options for more precise voice generation.

Podcast customization: Added support for intro and outro text in podcast creation, along with custom instructions prompts for better style and tone control.

JavaScript SDK v2.6.0: Released with latest API support and improvements
Python SDK v2.7.1: Released with bug fixes and enhancements
@elevenlabs/client v0.3.0: Updated client library with support for User IDs in Agents Platform.
@elevenlabs/react v0.3.0: Add WebRTC debug support.

View API changes

New Endpoints

Added 1 new endpoint:
- Stream Text to Voice Preview - Stream generated voice previews in real-time

Create voice previews - Enhanced loudness, quality, and guidance_scale parameter descriptions
Design voice - Added stream_previews property for streaming-only preview generation

Simulate conversation - Enhanced simulation configuration with improved parameter descriptions
Stream simulate conversation - Enhanced simulation configuration with improved parameter descriptions
Get Agents Platform settings - Updated RAG retention period configuration
Update Agents Platform settings - Updated RAG retention period configuration
Retry batch calling - Added batch retry functionality