Eleven Labs Release Notes

The eleven_monolingual_v1 and eleven_multilingual_v1 models are deprecated and will be removed on December 15th, 2025. Please migrate to newer models for continued service.

Agents Platform

• Workflow Expressions: Workflows now support complex expressions that allow for defining deterministic conditions using logical operators, dynamic variables and LLM evaluation. This enables more sophisticated agent logic and decision-making capabilities.
• MCP Server Interrupt Control: Added option to disable interruptions during all tool calls for MCP Servers, providing better control over agent behavior during tool execution.
• Audio Alignment Data: Agents now have a flag to enable alignment data in audio events, useful for audio-text synchronization use cases such as lip sync applications.
• Ignore Default Personality Setting: The Agents Platform configuration page now includes a checkbox to toggle whether agents should ignore the default helpful personality, giving developers more control over agent behavior.

Speech to Text

• Fixed Base64 Encoding Flag: Resolved an issue where the is_base64_encoded flag in STT responses was incorrectly set to false for PDF and DOCX formats, even when content was actually base64 encoded.

SDK Releases

JavaScript SDK

• v2.16.0: Updated with latest API schema changes from September 19, 2025.

Packages

• @elevenlabs/[email protected]: New public TypeScript types package providing shared type definitions across ElevenLabs integrations.
• @elevenlabs/[email protected] and @elevenlabs/[email protected]: Added support for passing custom script paths to avoid blob: and data: URLs for improved security and flexibility.
• @elevenlabs/[email protected] and @elevenlabs/[email protected]: Added use_rtc attribute for widget functionality and added expand event support for better widget interaction handling.

API

View API changes