v1 TTS model deprecation
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/types@0.0.1: New public TypeScript types package providing shared type definitions across ElevenLabs integrations.
- @elevenlabs/react@0.7.0 and @elevenlabs/client@0.7.0: Added support for passing custom script paths to avoid blob: and data: URLs for improved security and flexibility.
- @elevenlabs/convai-widget-embed@0.3.0 and @elevenlabs/convai-widget-core@0.3.0: Added
use_rtc
attribute for widget functionality and added expand event support for better widget interaction handling.
API
View API changes
Updated Endpoints
Agents Platform
- POST /v1/convai/agents/create: Added
ignore_default_personality
boolean parameter to control whether agents should ignore the default helpful personality behavior - PATCH /v1/convai/agents/{agent_id}: Added
ignore_default_personality
field support for agent updates - GET /v1/convai/agents/{agent_id}: Response now includes
ignore_default_personality
field in agent configuration - POST /v1/convai/mcp-servers: Added interrupt control configuration parameters for disabling interruptions during tool calls
- PATCH /v1/convai/mcp-servers/{mcp_server_id}: Enhanced with interrupt control settings for MCP server configuration
- GET /v1/convai/mcp-servers/{mcp_server_id}: Response includes new interrupt control configuration fields
- GET /v1/convai/conversations/{conversation_id}: Response enhanced with alignment data fields for audio-text synchronization support
- POST /v1/convai/agent-testing/create: Enhanced to support workflow expressions functionality in agent testing
- GET /v1/convai/agent-testing/{test_id}: Response includes additional fields for workflow expression test results
- PUT /v1/convai/agent-testing/{test_id}: Request and response schemas updated for workflow expression support
- POST /v1/convai/agents/{agent_id}/simulate-conversation: Request schema updated to support workflow expressions in conversation simulation
- POST /v1/convai/agents/{agent_id}/simulate-conversation/stream: Streaming conversation simulation with workflow expression support
- GET /v1/convai/settings: Response includes new platform configuration options
- PATCH /v1/convai/settings: Request schema updated with new platform settings
- POST /v1/convai/batch-calling/submit: Request schema updates for batch calling functionality
- PATCH /v1/convai/mcp-servers/{mcp_server_id}/approval-policy: Response schema updated for approval policy management
- POST /v1/convai/mcp-servers/{mcp_server_id}/tool-approvals: Response schema enhanced for tool approval handling
- DELETE /v1/convai/mcp-servers/{mcp_server_id}/tool-approvals/{tool_name}: Response schema updated for tool approval removal
Speech to Text
- POST /v1/speech-to-text: Fixed
is_base64_encoded
boolean flag to correctly returntrue
when PDF and DOCX document content is base64 encoded
Text to Speech
- POST /v1/text-to-speech/{voice_id}/with-timestamps: Request and response schemas updated for enhanced timestamp functionality
- POST /v1/text-to-speech/{voice_id}/stream: Request schema updated for improved streaming parameters
- POST /v1/text-to-speech/{voice_id}/stream/with-timestamps: Request and response schemas updated for streaming with timestamps
- POST /v1/text-to-voice/create-previews: Request schema enhanced with new preview generation options
- POST /v1/text-to-voice: Response schema updated with additional voice creation data
- POST /v1/text-to-voice/{voice_id}/remix: Request schema enhanced for voice remixing parameters
Voice Management
- GET /v1/voices: Response schema updated with new voice metadata fields
- GET /v1/voices/{voice_id}: Response schema enhanced with additional voice properties
- GET /v1/voices/settings/default: Response schema updated for default voice settings
- GET /v1/voices/{voice_id}/settings: Response schema enhanced with new configuration options
- POST /v1/voices/{voice_id}/settings/edit: Request schema updated for voice settings modification
- POST /v1/voices/pvc/{voice_id}/samples/{sample_id}: Request schema enhanced for PVC sample management
- GET /v1/voices/pvc/{voice_id}/samples/{sample_id}/audio: Response schema updated for audio sample retrieval
- GET /v1/voices/pvc/{voice_id}/samples/{sample_id}/speakers/{speaker_id}/audio: Response schema enhanced for speaker-specific audio
- POST /v1/voice-generation/create-voice: Response schema updated with new voice generation data
Studio
- POST /v1/studio/podcasts: Request schema enhanced with new podcast creation parameters
User Management
- GET /v1/user: Response schema updated with additional user profile data
All changes are backward compatible and do not require immediate action from developers.
Productions launch
Introducing Productions - our new managed service offering for ordering human-edited content that looks, sounds and feels natural. Made for creators and media businesses.
Our network of linguists and audio professionals offer end-to-end production quality for:
- Dubbing
- Captions and subtitles
- Transcription
- Audiobooks
You can order a project directly from the ‘Productions’ page in your ElevenLabs account, or by emailing productions@elevenlabs.io. Pricing starts at $2/minute, contact us for more details.
Agents Platform
-
MCP pre-tool speech: Added support for configuring tools extracted from an MCP Server to require pre-tool execution speech. This enhancement allows agents to provide verbal context before executing specific tools, improving the conversational flow during tool usage.
-
ElevenLabs hosted LLMs: Added support for ElevenLabs hosted LLMs which unlock lower latency by running on ElevenLabs infrastructure alongside Speech to Text and Text to Speech services.
-
Enum values for tool parameters: Added support for specifying a tool’s parameters as enum values for greater control
SDK Releases
JavaScript SDK
- v2.16.0: Updated the elevenlabs-js SDK with the latest API schema changes, including new MCP server endpoints and enhanced history filtering capabilities.
Python SDK
- v2.16.0: Updated the elevenlabs-python SDK with the latest API schema changes, including new MCP server endpoints and enhanced history filtering capabilities.
- v2.15.1: Fixed conversation handling when no authentication is required and added asyncio event loop support for better async operations.
Package Updates
- @elevenlabs/agents-cli@0.3.2: Updated the Agents CLI package with improvements to agent development tools. The ConvAI CLI has been renamed to Agents CLI to align with the ElevenLabs Agents Platform branding.
- @elevenlabs/convai-cli@0.2.3: Final release of the legacy ConvAI CLI package before migration to the new Agents CLI.
- @elevenlabs/react@0.6.3: Updated the React components package with enhanced functionality.
API
View API changes
New Endpoints
PATCH /v1/convai/mcp-servers/{mcp_server_id}
- Update MCP Server Configuration: Added new endpoint to update MCP server configurations, replacing the deprecated approval policy endpoint.
Updated Endpoints
History Management
GET /v1/history
- Get generated items: Enhanced with additional filtering parameters:- Added
model_id
parameter for filtering by specific models - Added
date_before_unix
parameter for filtering items before a specific date - Added
date_after_unix
parameter for filtering items after a specific date - Added
sort_direction
parameter for controlling sort order
- Added
Deprecated Endpoints
PATCH /v1/convai/mcp-servers/{mcp_server_id}/approval-policy
- Deprecated in favor of the new general MCP server update endpoint
Text to Speech
- WebSocket output format: Added support for specifying output format in the first message of a WebSocket connection, providing greater flexibility for real-time audio streaming workflows.
Agents Platform
- First message interruption control: Added
disable_first_message_interruptions
setting to prevent agents from being interrupted during important opening messages like legal disclaimers.
MCP Server
- Version 0.8.1: Added data residency support.
SDK Releases
JavaScript SDK
- v2.15.0 - Added new Text to Voice Remix endpoint
Python SDK
- v2.15.1 - Fixed conversation authentication issue and added asyncio event loop support
- v2.15.0 - Added new Text to Voice Remix endpoint and fixed Pydantic issues
Packages
- @elevenlabs/react@0.6.2 - Added correction and MCP tool call events
- @elevenlabs/client@0.6.2 - Added correction and MCP tool call events
- @elevenlabs/react-native@0.3.1 - Added correction and MCP tool call events
API
View API changes
New Endpoints
DELETE /v1/speech-to-text/transcripts/{transcription_id}
- Delete Transcript By Id
Updated Endpoints
Backward Compatible Changes
- Get dubbing - Added the optional
order_by
andorder_direction
parameters. - List Agents - Added the optional
sort_by
andsort_direction
parameters. - List knowledge base documents - Added the optional
sort_by
andsort_direction
parameters.
Text to Speech
- Language code support: All Text to Speech models now support language codes for improved output. Normalization has been enabled for Eleven v3, Flash, and Turbo models to enhance audio quality and consistency.
Agents Platform
- Multi-voice agent history: Messages from multi-voice agents are now displayed in conversation history with clear separation by voice, making it easier to follow which voice spoke which part of a conversation.
SDK Releases
JavaScript SDK
- v2.15.0 - Adds support for new voice remix functionality
Python SDK
- v2.15.0 - Adds support for new voice remix functionality. Also fixed an issue with Pydantic.
React Components
- @elevenlabs/react@0.6.1 - Fix output bytes and device input/output switching
- @elevenlabs/client@0.6.1 - Fix output bytes and device input/output switching
MCP Server
- v0.7.0 - Latest release of the ElevenLabs MCP Server with new features and improvements for Claude Desktop integration. Includes new
loop
parameter for SFX generation.
API
View API changes
New Endpoints
- Remix a voice - Create voice variations from existing voices
- Get Transcript By Id - Retrieve specific transcription results
Updated Endpoints
Backward Compatible Changes
- Get Project - Added optional
share_id
query parameter for project sharing functionality - Convert Speech to Text - Modified
enable_logging
parameter for improved logging control
All API changes in this release are backward compatible and will not break existing integrations.
Agents Platform
- Gemini 2.5 Flash Lite HIPAA compliance: Added Gemini 2.5 Flash Lite to the list of HIPAA approved models for compliant conversations when a BAA is signed and zero-retention mode is enabled.
- Conversation ID in signed URLs: Added support for including conversation IDs in signed URL requests, providing better tracking and identification capabilities for conversation audio access.
SDK Releases
JavaScript SDK
- v2.13.0 - Released August 29, 2025. Adds support for new
loop
parameter in SFX.
Python SDK
- v2.13.0 - Released August 29, 2025. Adds support for new
loop
parameter in SFX.
ConvAI packages
- @elevenlabs/react v0.6.0 and @elevenlabs/client v0.6.0 - Released August 29, 2025. Fixed setVolume functionality, added client tool debugging, and added audio device controls.
MCP Server
- ElevenLabs MCP Server v0.6.0 - Released August 26, 2025. Fixed diarization functionality in speech-to-text and added music generation endpoints.
API
View API changes
Updated Endpoints
Dubbing
- Render project - Added optional
should_normalize_volume
query parameter to control audio normalization during rendering
Agents Platform
- Get signed URL - Added optional
include_conversation_id
query parameter to include conversation ID in the response
Sound Effects
- Create sound effect - Added optional
loop
parameter to create sound effects that loop smoothly
Removed Endpoints
- Delete workspace member - Removed the
DELETE /v1/workspace/members
endpoint for deleting workspace members. This endpoint was never meant to be publicly available.
Agents Platform
- Agent testing framework: Introduced a comprehensive testing framework for ElevenLabs agents, allowing developers to create, manage, and execute automated tests for their agents. This includes test creation, execution tracking, and result analysis capabilities.
- Test invocation management: Added support for resubmitting failed test invocations and viewing detailed test results to help developers debug and improve their agents.
- Enhanced agent configuration: Improved agent creation and management with additional workspace override capabilities and refined platform settings.
Text to Speech
- Pronunciation dictionary updates: Added support for updating pronunciation dictionaries with PATCH operations, enabling more flexible dictionary management.
- Enhanced timestamp support: Improved timestamp generation for text-to-speech conversions with better alignment data and streaming capabilities.
SDK Releases
- TypeScript SDK v2.12.2: Updated with the latest API schema changes, including full support for the new agent testing endpoints and enhanced Agents Platform capabilities.
- Python SDK v2.12.1: Released with complete support for all new API features, including agent testing framework and improved workspace resource management.
API
View API changes
New Endpoints
Added 10 new endpoints this week:
ElevenLabs agent Testing
POST /v1/convai/agent-testing/create
- Create Agent Response Test - Create automated tests for your ElevenLabs agentsGET /v1/convai/agent-testing/{test_id}
- Get Agent Response Test By Id - Retrieve specific test configurations and resultsPUT /v1/convai/agent-testing/{test_id}
- Update Agent Response Test - Modify existing test setups and parametersDELETE /v1/convai/agent-testing/{test_id}
- Delete Agent Response Test - Remove test configurations from your workspacePOST /v1/convai/agent-testing/summaries
- Get Agent Response Test Summaries By Ids - Retrieve aggregated test results for multiple testsGET /v1/convai/agent-testing
- List Agent Response Tests - Browse all available tests in your workspacePOST /v1/convai/agents/{agent_id}/run-tests
- Run Tests On The Agent - Execute test suites against specific agentsGET /v1/convai/test-invocations/{test_invocation_id}
- Get Test Invocation - Retrieve detailed test execution resultsPOST /v1/convai/test-invocations/{test_invocation_id}/resubmit
- Resubmit Tests - Re-run failed test invocations
Pronunciation Dictionaries
PATCH /v1/pronunciation-dictionaries/{pronunciation_dictionary_id}
- Update Pronunciation Dictionary - Update existing pronunciation dictionaries with new rules or modifications
Eleven v3 API
Eleven v3 is now available via the API.
To start using it, simply specify the model ID eleven_v3
when making Text to Speech requests.
Additionally the Text to Dialogue API endpoint is now available to all.
Music Generation API
The Eleven Music API is now freely available to all paid users.
Visit the quickstart to lean how to integrate. The API section below highlights the new endpoints that have been released.
Global TTS API preview
ElevenLabs is launching inference servers in additional geographical regions to reduce latency for clients outside of the US. Initial request processing will be available in the Netherlands and in Singapore in addition to the US.
To learn how to get started head to the docs.
API
View API changes
New Endpoints
- Added 4 new endpoints:
- Compose music - Create music from text prompts
- Create composition plan - Optimize music generation parameters before processing
- Compose music with details - Advanced music generation with detailed parameters
- Stream music - Real-time streaming music generation
Updated Endpoints
Text to Speech
- Updated Text to Speech endpoints with improved parameter handling:
- Convert text to speech - Enhanced voice settings and text input parameter handling
- Stream text to speech - Improved streaming parameter management
- Convert with timestamps - Better alignment parameter handling
Voice Management
- Updated Voice endpoints with enhanced parameter support:
- Create voice previews - Improved preview generation parameters
- Create voice from preview - Enhanced voice creation options
- Get voice - Updated voice parameter responses
- List voices - Improved voice listing parameters
Speech to Text
- Updated Speech to Text endpoint:
- Convert speech to text - Enhanced transcription parameter handling
Usage and Analytics
- Updated Usage endpoints:
- Get character stats - Added aggregation bucket size parameter and improved breakdown type options
Workspace Management
- Updated Workspace endpoints:
- Get workspace resource - Enhanced resource type parameter handling
- Share workspace resource - Updated sharing parameter structure
- Unshare workspace resource - Updated unsharing parameter structure
Music
Eleven Music: Officially released new music generation model that creates studio-grade music with natural language prompts in any style. See the capabilities page and prompting guide for more information.
SDKs
v2.9.0 of the TypesScript SDK released
- Includes better typing support for Speech to Text requests in webhook mode
- Includes new enums for ChatGPT 5
v2.9.2 of the Python SDK released
- Includes new enums for ChatGPT 5
Agents Platform
Agent response correction: Updated WebSocket event schema and handling for improved agent response correction functionality.
API
View API changes
User Account Changes
- Updated user account endpoint:
- Get user subscription info - Deprecated
convai_chars_per_minute
andconvai_asr_chars_per_minute
fields in the response schema. These fields will now always returnNone
.
- Get user subscription info - Deprecated
Parameter Removals
- Updated conversation token endpoint:
- Get conversation token - Removed
source
andversion
query parameters. These were internal parameters not meant for public use and their removal does not affect functionality.
- Get conversation token - Removed
Agents Platform
- Conversation token generation: Added new route to generate Conversation Tokens for WebRTC connections. Learn more
- Expandable widget options: Our embeddable widget can now be customized to start in the expanded state and disable collapsing altogether.
- Simplified operation IDs: We simplified the OpenAPI operator IDs for Agents Platform endpoints to improve developer experience.
Workspaces
- Simplified operation IDs: We simplified the operation IDs for our workspace endpoints to improve API usability.
SDK Releases
- Python SDK v2.8.2: Released latest version with improvements and bug fixes. View release
NPM Packages
- @elevenlabs/react-native@0.1.2: Enhanced React Native support
- @elevenlabs/client@0.4.4: Client library improvements
- @elevenlabs/react@0.4.5: React component updates
API
View API changes
New Endpoints
Agents Platform
- Get conversation token - Generate authentication token for WebRTC connections
Updated Endpoints
Voice Management
- List voices - Added
voice_ids
query parameter for filtering specific voices
Agents Platform Core
- List conversations - Added
summary_mode
parameter for conversation summaries
Operation ID Improvements
- Agents Platform endpoints: Simplified operation IDs for better developer experience while maintaining full backward compatibility
- Workspace endpoints: Streamlined operation IDs across all workspace-related endpoints to improve API usability
Workspaces
- Service account API key management: Added comprehensive API endpoints for managing service account API keys, including creation, retrieval, updating, and deletion capabilities. See Service Accounts documentation.
Agents Platform
- Post-call webhook migration: The post call webhook format is being migrated so that webhook handlers can be auto generated in the SDKs. This is not a breaking change, and no further action is required if your current handler accepts additional fields. Please see more information here.
- Agent transfer improvements: Fixed system variable
system_agent_id
to properly update after agent-to-agent transfers, ensuring accurate conversation context tracking. Added newsystem_current_agent_id
variable for tracking current active agent. Learn more about dynamic variables. - Enhanced public agent page: Added text input functionality and dynamic variable support to the public talk-to-agent page. You can now pass dynamic variables via URL parameters (e.g.,
?var_username=value
) and use text input during voice conversations. See dynamic variables guide. - Voicemail detection: Added voicemail detection as a built-in tool for ElevenLabs agents to improve call handling. Learn about voicemail detection.
- Conversation filtering: Added
user_id
query parameter to conversation list endpoint for filtering conversations by initiating user.
Speech to Text
- Multi-channel transcription: Added
use_multi_channel
parameter to transcription endpoint for processing audio files with multiple speakers on separate channels. Supports up to 5 channels with per-channel transcription results. See multichannel guide.
Studio
- Caption support: Added caption functionality to Studio projects with new
captions_enabled
andcaption_style
properties for both podcasts and general projects. Learn more about Studio.
SDKs
- JavaScript SDK v2.7.0: Released with latest API support and improvements
- Python SDK v2.8.1: Released with latest API support and improvements
- @elevenlabs/client v0.4.1: Updated client library with latest features, including WebRTC support
- @elevenlabs/react v0.4.1: Enhanced React components with latest features, including WebRTC support
- @elevenlabs/react-native v0.1.1: New React Native package for mobile integration with ElevenLabs Agents, based on WebRTC
- @elevenlabs/convai-widget-embed v0.1.0: New package for embedding Agents Platform widgets into web applications
- Swift SDK v2.0.3: Released with WebRTC support for real-time Agents Platform integration on Apple platforms
API Schema Updates
View API changes
New Endpoints
- Service Account Management: Added 5 new endpoints for service account API key management:
GET /v1/service-accounts/{service_account_user_id}/api-keys
- Retrieve service account API keysPOST /v1/service-accounts/{service_account_user_id}/api-keys
- Create service account API keyDELETE /v1/service-accounts/{service_account_user_id}/api-keys/{api_key_id}
- Delete service account API keyPATCH /v1/service-accounts/{service_account_user_id}/api-keys/{api_key_id}
- Update service account API keyGET /v1/service-accounts
- Get workspace service accounts
Removed Endpoints
- Legacy Project Endpoints: Removed 22 deprecated project management endpoints as part of Studio API consolidation:
- All
/v1/projects/*
endpoints (replaced by/v1/studio/projects/*
) - Legacy Text to Voice endpoints (
/v1/text-to-voice/create-voice-from-preview
,/v1/text-to-voice/remixing-sessions/*
) - Legacy ConvAI knowledge base endpoints
- All
Updated Endpoints
Speech to Text
- Multi-channel support: Updated
/v1/speech-to-text
endpoint:- Added
use_multi_channel
parameter for processing multi-speaker audio files - Modified response structure to include optional
language_code
,language_probability
,text
, andwords
properties
- Added
Agents Platform
- Enhanced agent configuration: Updated agent creation and management endpoints:
- Added voicemail detection to built-in tools
- Improved RAG configuration with
max_retrieved_rag_chunks_count
parameter - Enhanced conversation token endpoint with
source
andversion
parameters - Added
user_id
filtering to conversations list endpoint
Studio Projects
- Caption support: Updated Studio project endpoints to include:
captions_enabled
property for enabling/disabling captionscaption_style
property for global caption styling configuration
Text to Voice
- Improved voice generation: Enhanced voice creation endpoints with:
loudness
control (-1 to 1 range, 0 corresponds to -24 LUFS)quality
parameter for balancing output quality vs varietyguidance_scale
parameter for controlling AI creativity vs prompt adherence