Eleven Labs Release Notes

Text to Speech

v1 model removal: The eleven_monolingual_v1 and eleven_multilingual_v1 models are deprecated and will be removed on July 9, 2026. Migrate to eleven_multilingual_v2 or another current model before removal. See deprecated models for replacement suggestions.

Speech to Text

Scribe v1 removal: The scribe_v1 model is deprecated and will be removed on July 9, 2026. Migrate to scribe_v2 or scribe_v2_realtime before removal. See deprecated models for replacement suggestions.

ElevenAgents

Turn model configuration: TurnConfig and TurnConfigWorkflowOverride add optional turn_model (turn_v2 or turn_v3, default turn_v3) to select the turn detection model version per agent or workflow node.

Soft timeout filler messages: SoftTimeoutConfig and SoftTimeoutConfigWorkflowOverride add optional additional_soft_timeout_messages (array of strings, up to 7) and max_soft_timeouts_per_generation (integer, 1–8, default 1). The primary message applies to the first timeout; subsequent timeouts use the additional messages or a built-in filler.

ASR provider default: The default ASRConversationalConfig.provider value changes from elevenlabs to scribe_realtime. The elevenlabs value remains in the enum but is deprecated.

Conversation product field: Get conversation details response adds optional conversation_product (string, default agent) to identify the product that handled the conversation.

Knowledge base external sync: Knowledge base file and folder response models add optional external_sync_info (Google Drive sync metadata via ExternalFileSyncInfo / ExternalFolderSyncInfo) and optional is_frozen (boolean) to indicate whether synced content can be edited.

Tool schema omit overrides: ConvAI tool JSON schema properties add optional is_omitted (boolean) and OmitSchemaOverride with source: omit, allowing fields to be explicitly omitted from tool payloads.

Procedure guardrails: Procedure version schemas add optional guardrails.

Workspaces

URL secret auth connections: Workspace auth connection create, list and response unions add url_secret (UrlSecretAuthResponse) as a supported auth connection type for tools that fetch secrets from a URL.

Agent QA Evaluations webhooks: WebhookUsageType adds Agent QA Evaluations as a webhook usage category for agent quality-assurance event delivery.

Text to Dialogue

Zero retention mode: Convert text to dialogue, Stream text to dialogue, Convert text to dialogue with timestamps and Stream text to dialogue with timestamps add optional enable_logging query parameter (boolean, default true). Set enable_logging=false to use zero retention mode with no history or request stitching. Zero retention mode is available to enterprise customers only.

ElevenCreative Studio

Safesearch adult metadata: Get projectpublishing_read responses add optional safesearch_adult (nullable boolean) on DirectPublishingReadResponseModel for direct publishing content classification.

SDK Releases

JavaScript SDK

v2.52.0 - Regenerated from the latest OpenAPI schema with turn_model and soft timeout filler fields on turn configs, knowledge base external sync types, OmitSchemaOverride for tool schemas, UrlSecretAuthResponse, conversation_product on conversation responses, text-to-dialogue enable_logging support, and updated AsrProvider defaults.

v2.51.0 - Added workspace API key revoke client, ConversationSentimentAnalysis and SystemEvaluationCriteria types, CustomLlmAuthConnection for HTTP tool auth, procedure tool config types, ResourceAccessInfoAccessSource, and conversation list/search filters for workflow_node_entered_id and topic_ids.

Python SDK

v2.52.0 - Regenerated from the latest OpenAPI schema with turn model and soft timeout config updates, knowledge base external sync models, tool schema omit overrides, URL secret auth connections, conversation conversation_product, text-to-dialogue enable_logging support, and updated ASR provider defaults.

v2.51.0 - Regenerated from the latest OpenAPI schema with workspace API key revoke, conversation sentiment and system evaluation types, procedure tool configuration models, and updated conversation filtering parameters.

Packages

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Added call and message entry points to the widget launcher. Multimodal agents show both; voice-only agents show call; text-only agents show message.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Fixed compact and full trigger control alignment.

API

ElevenAgents

Exotel telephony integration: Added Exotel as a first-class telephony provider alongside Twilio and SIP trunking. New Exotel outbound call endpoint (POST /v1/convai/exotel/outbound-call) initiates outbound calls via the Exotel Connect API with agent_id, agent_phone_number_id, to_number, optional conversation_initiation_client_data and optional telephony_call_config. Exotel phone number create, list, get and update schemas are available, and exotel is added to TelephonyProvider, conversation initiation source and transfer result enums.

Workflow-aware agent transfers: AgentTransfer now allows a nullable agent_id so transfers can stay on the current agent, adds optional node_id to start at a specific node in the destination workflow, and only requires condition. Successful transfer_to_agent tool results can include nullable to_node, aligning transfers with workflow-node targets.

Agent test repeat runs: Run tests on the agent accepts optional repeat_count (integer, 1–20, default 1) to run each test multiple times. When repeat_count is greater than 1, responses include bucketing_status and result_groups for grouped summaries. Unit test create, update and summary schemas add optional conversation_initiation_source so tests can simulate a specific channel.

Conversation filtering: List conversations adds optional workflow_node_entered_id (string) to filter conversations that entered a given workflow node. Text search conversation messages adds optional topic_ids (array of strings) to filter by topic IDs assigned during topic discovery.

Agent versioning query parameters deprecated: enable_versioning on create agent and enable_versioning_if_not_enabled on update agent are marked deprecated. All agents are versioned and these parameters are ignored.

Procedure compiler mode: Removed append from ProcedureCompilerMode.

Workspaces

Revoke API key: Added revoke API key endpoint (DELETE /v1/workspaces/api-keys/revoke) with required api_key_name query parameter to revoke a workspace API key by name. This endpoint is destructive and requires additional account permissions, even though the documentation is public. Contact your ElevenLabs representative to enable it for your account.

Resource access disclosure: Resource access response models add optional access_source (creator, explicit, workspace_default, workspace_admin) so clients can disclose why a user has access to a shared resource.

Speech to Text

Larger upload limit: Convert speech to text now accepts audio and video files up to 5.0GB, increased from 3.0GB.

Dubbing

hCaptcha support: Dub a video or audio file request body adds optional hcaptcha_token (string) for bot protection on dubbing project creation.

Zip render format: RenderType adds zip alongside existing output formats such as mp4, aac, mp3, wav, aaf, tracks_zip and clips_zip.

SDK Releases

Packages

@elevenlabs/[email protected] - Added configurable microphone input chunk duration via inputChunkDurationMs (default 25ms).

@elevenlabs/[email protected] - Exposed inputChunkDurationMs for microphone input chunk duration and updated the client dependency to @elevenlabs/[email protected].

@elevenlabs/[email protected] - Updated dependencies to @elevenlabs/[email protected] and @elevenlabs/[email protected].

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Updated widget dependencies to @elevenlabs/[email protected].

Flutter SDK v0.6.1 - Hardened LiveKit session teardown against uncaught stream errors.

API

Introducing Speech Engine

ElevenLabs Speech Engine adds real-time voice to your own chat agent or LLM. ElevenLabs handles speech-to-text, turn-taking, text-to-speech and browser playback while your server owns the agent logic and streams response text over a Speech Engine WebSocket. Use it when you want voice on a custom runtime rather than a fully hosted ElevenAgents configuration.

ElevenAgents

• Text behavior overrides: Added text_behavior_overrides, a per-ConversationInitiationSource map of BehaviorOverride objects with optional verbosity, output_format and interaction_budget fields for channel-specific agent behavior.
• Integration sources: Added Intercom, Telegram and Freshdesk.
• OTLP conversation traces: Get conversation details now accepts an optional format query parameter. Set format=otlp_traces to return OTLP-compatible trace data alongside the standard conversation payload.
• ASR keyword overrides: Added ASRConversationalConfigOverride and ASRConversationalConfigOverrideConfig schemas with optional keywords arrays, wired into conversation config client override models.
• Webhook auth metadata: Webhook tool configuration schemas now expose optional auth_resolved_params (string array) documenting URL placeholders resolved from the auth connection.

Music

• Generation mode: Added MusicGenerationMode (track, loop, ambience) and an optional generation_mode field on music prompt request bodies.
• Video to music model: Video to music (POST /v1/music/video-to-music) now accepts optional model_id (string, default music_v1).

ElevenCreative Studio

• Conversion credits: Chapter and voice conversion statistics response models now include optional credits_needed_to_convert (integer) indicating credits required before conversion.

Workspaces

• Resource types: Added studio_projects to WorkspaceResourceType.

SDK Releases

Python SDK

• v2.50.0 - Regenerated the SDK for the May 25, 2026 API schema.
• v2.49.1 - Updated Speech Engine API calls to return the full response object.
• v2.49.0 - Regenerated the SDK for the May 18–25, 2026 API schema, including ElevenAgents text behavior overrides, music generation_mode, and workspace studio_projects.

JavaScript SDK

• v2.50.0 - Added missing Music API methods and tests, and regenerated the SDK for the May 25, 2026 API schema.
• v2.49.1 - Updated Speech Engine API calls to return the full response object.
• v2.49.0 - Regenerated the SDK for the May 18–25, 2026 API schema, including ElevenAgents text behavior overrides, music generation_mode, and workspace studio_projects.

Packages

• @elevenlabs/[email protected] - Fixed iOS Safari dropping the first agent message on WebSocket voice sessions by unlocking an AudioContext on the first user gesture and priming the playback graph after the audio worklet loads.
• @elevenlabs/[email protected] and @elevenlabs/[email protected] - Style emotion and audio tags in voice transcripts when strip_audio_tags is off, and treat null top-level terms_html or terms_text as a kill switch for the terms and conditions modal.
• @elevenlabs/[email protected] and @elevenlabs/[email protected] - Updated widget dependencies to @elevenlabs/[email protected].

API

ElevenAgents

Agent version metadata: Added an API endpoint to retrieve metadata for a specific agent version. The response includes the version ID, agent ID, branch ID, description, sequence number, commit timestamp, parents and access information.

Conversation filtering: Added a text_only filter to conversation list and message text search endpoints so developers can narrow results to text-only conversations.

Procedure loading: Added load_procedure as a system tool configuration with ProcedureAtVersion, and added skills to ProcedureCompilerMode. ProcedureSettings.compiler_mode now defaults to skills.

Agent configuration updates: Added gemini-3.1-flash-lite and qwen35-397b-a17b as LLM options, added genesys_bot_connector as a conversation initiation source, added auto_resolve_after_inactive_minutes to alerting settings, and added attributes_to_headers to SIP trunk configuration.

Custom LLM temperature: Agent prompt temperature can now be set to null to omit the temperature field from downstream LLM requests.

Workspaces

Auth connection updates: Added an API endpoint to update workspace auth connections. The endpoint supports updating basic auth, OAuth2 client credentials and OAuth2 JWT connections. OAuth2 client credentials now support custom_headers for token requests.

Auth connection types: Added bearer auth create request support and Slack bot auth response schemas.

Workspace resource types: Added convai_templates and transcription_tasks to workspace resource types.

Voice Isolator

Video processing status: Audio isolation history items now include the video_processing_failed boolean field.

SDK Releases

Python SDK

v2.48.0 - Regenerated the SDK for the May 18, 2026 API schema, including typed support for workspace auth connection updates, agent version metadata, conversation text_only filters, new ElevenAgents configuration fields, updated LLM options and voice isolator history updates. The release also excludes the speech_engine_custom.py example from Fern packaging.

JavaScript SDK

v2.48.0 - Added environment configuration to conversation initiation data and events, and regenerated the SDK for the May 18, 2026 API schema, including workspace auth connection updates, agent version metadata, conversation text_only filters, new ElevenAgents configuration fields, updated LLM options and voice isolator history updates.

Packages

@elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected] and @elevenlabs/[email protected] - Updated the client dependency. @elevenlabs/[email protected] pins livekit-client to 2.16.1 and forces the dual peer connection path to fix WebRTC connection failures with newer LiveKit join protocols.

@elevenlabs/[email protected] - Removed manually maintained types from @elevenlabs/types, including Role, Mode, Status, Callbacks, CALLBACK_KEYS, DisconnectionDetails, MessagePayload and AudioAlignmentEvent. Import those types from @elevenlabs/client instead. The types package now contains only generated code.

iOS SDK

v3.2.0 - Added support for text-only conversations over WebSockets and fixed message handling.

v3.1.5 - Improved ConnectionManager and DataChannelReceiver cleanup on deallocation, skipped audio hardware initialization in text-only mode, removed unused code and duplicate agent ID extraction, and bumped visionOS support.

API

Product

Agents Platform

Additional languages: Add a language dropdown to your widget so customers can launch conversations in their preferred language. Learn more here.

End call tool: Let the agent automatically end the call with our new “End Call” tool. Learn more here

Flash default: Flash, our lowest latency model, is now the default for new agents. In your agent dashboard under “voice”, you can toggle between Turbo and Flash. Learn more about Flash here.

Privacy: Set concurrent call and daily call limits, turn off audio recordings, add feedback collection, and define customer terms and conditions.

Increased tool limits: Increase the number of tools available to your agent from 5 to 15. Learn more here.

Model

Introducing Flash: Our fastest text-to-speech model yet, generating speech in just 75ms. Access it via the API with model IDs eleven_flash_v2 and eleven_flash_v2_5. Perfect for low-latency Agents Platform applications. Try it now.

Launches

• TalkToSanta.io: Experience Agents Platform in action by talking to Santa this holiday season. For every conversation with santa we donate 2 dollars to Bridging Voice (up to $11,000).
• AI Engineer Pack: Get $50+ in credits from leading AI developer tools, including ElevenLabs.

API

Credit Usage Limits: Set specific credit limits for API keys to control costs and manage usage across different use cases by setting "Access" or "No Access" to features like Dubbing, Audio Native, and more. Check it out

Workspace API Keys: Now support access permissions, such as "Read" or "Read and Write" for User, Workspace, and History resources.

Improved Key Management:Redesigned interface moving from modals to dedicated pages
Added detailed descriptions and key information
Enhanced visibility of key details and settings

Product

GenFM: Launched in the ElevenReader app. Learn more

Agents Platform: Now generally available to all customers. Try it now

TTS Redesign: The website TTS redesign is now rolled out to all customers.

Auto-regenerate: Now available in Projects. Learn more

Reader Platform Improvements:

Improved content sharing with enhanced landing pages and social media previews.

Added podcast rating system and improved voice synchronization.

Projects revamp:

Restore past generations, lock content, assign speakers to sentence fragments, and QC at 2x speed. Learn more

Auto-regeneration identifies mispronunciations and regenerates audio at no extra cost. Learn more

API

Agents Platform: SDKs and APIs now available.

API

u-law Audio Formats: Added u-law audio formats to the Convai API for integrations with Twilio.

TTS Websocket Improvements: TTS websocket improvements, flushes and generation work more intuitively now.

TTS Websocket Auto Mode: A streamlined mode for using websockets. This setting reduces latency by disabling chunk scheduling and buffers. Note: Using partial sentences will result in significantly reduced quality.

Improvements to latency consistency: Improvements to latency consistency for all models.

Website

TTS Redesign: The website TTS redesign is now in alpha!

Model

Stability Improvements: Significant audio stability improvements across all models, most noticeable on turbo_v2 and turbo_v2.5, when using:Websockets

Projects

Reader app

TTS with request stitching

ConvAI

Latency Improvements: Reduced time to first byte latency by approximately 20-30ms for all models.

API

Remove Background Noise Voice Samples: Added the ability to remove background noise from voice samples using our audio isolation model to improve quality for IVCs and PVCs at no additional cost.

Remove Background Noise STS Input: Added the ability to remove background noise from STS audio input using our audio isolation model to improve quality at no additional cost.

Feature

Agents Platform Beta: Agents Platform is now in beta.

ElevenAgents

SIP logs: SIP signaling logs are now available for SIP trunk calls in conversation history and phone number settings. Logs include the SIP call ID, phone numbers, addresses, transport, message direction, raw messages and errors to help debug call setup and routing issues.

Knowledge base document updates: New API to list indexed (RAG) chunks for a document. Documents can also be edited in place: rename the item and, for text-based documents, update the body without re-uploading the file. (File-based documents still use the existing replace-file flow where applicable.)

SMS conversation metadata: Added SMS support to conversation metadata with SMSConversationInfo, sms as an authorization method and twilio_sms as a conversation initiation source.

Agent configuration updates: Added background music configuration schemas, alerting monitor configuration, 2D layout fields, widget file upload configuration, and new LLM options gpt-5.4-mini, gpt-5.4-nano, gpt-5.4-mini-2026-03-17 and gpt-5.4-nano-2026-03-17.

Workspaces

API request analytics: Added a workspace analytics endpoint for querying API requests with time range, filtering, search, sort and limit controls.

API key IP allowlisting: Added allowed_ips to service account API key create, edit and response schemas. Create requests accept an array of IP addresses or CIDR ranges, or null to allow all IPs. Edit requests also accept clear and no_update.

Workspace permissions: Added conversational_ai_read and voice_design to workspace group permissions.

Voice Design

Voice preview migration: Deprecated POST /v1/text-to-voice/create-previews. Use Design a voice to create previews, then use the returned generated_voice_id when creating a voice.

Voice Changer

WAV output formats: Added wav_8000, wav_16000, wav_22050, wav_24000, wav_32000, wav_44100 and wav_48000 to the output_format query parameter on speech-to-speech conversion.

SDK Releases

Python SDK

v2.47.0 - Regenerated the SDK for the May 12, 2026 API schema. The release adds typed support for RAG chunk listing, file document updates, workspace API request analytics, service account API key IP allowlisting, phone number agent configuration fields, webhook request headers, voice metadata moderation, new LLM options and updated speech-to-speech output formats.

JavaScript SDK

v2.47.0 - Regenerated the SDK for the May 12, 2026 API schema. The release adds typed support for RAG chunk listing, file document updates, workspace API request analytics, service account API key IP allowlisting, phone number agent configuration fields, webhook request headers, voice metadata moderation, new LLM options and updated speech-to-speech output formats.

Packages

@elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected] and @elevenlabs/[email protected] - Added full tool result payload support to onAgentToolResponse. The callback now receives agent_tool_response_full_payload events with the raw full_tool_result string, capped at 64 KB, when enabled in the agent configuration.

@elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected] and @elevenlabs/[email protected] - Added native mute and unmute support to Scribe realtime STT. RealtimeConnection now exposes mute(), unmute() and isMuted, and useScribe exposes matching state and callbacks. The releases also add onAgentResponseCorrection for agent response correction events.

@elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected] and @elevenlabs/[email protected] - Added optional contextId to sendContextualUpdate for deduplicating contextual updates and added llm to the typed agent prompt override for conversation sessions. The React package also allows useScribe microphone deviceId to use full ConstrainDOMString constraints.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Added file upload support to the embedded ElevenAgents widget.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Fixed text input submission for IME users by ignoring Enter keydowns while composition is active.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Updated the widget packages to @elevenlabs/[email protected], including full tool result payload support.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Fixed transcript ordering when user and agent messages share the same event_id, so voice and DTMF turns render the user transcript before the agent message.

@elevenlabs/[email protected] and @elevenlabs/[email protected] - Fixed voice widget transcripts so streamed agent response parts are ignored for voice sessions and late user transcripts are inserted before their matching agent response.

API

ElevenAgents

Conversation tags: Added first-class conversation tags for organizing and filtering conversations. You can now create, update, list and delete tags, assign tags to conversations, and filter conversation history by tag_ids.

Conversation list filters: Added exclude_statuses to list conversations, allowing clients to hide conversations with statuses such as initiated, in-progress, processing, done, or failed.

Model options: Added claude-opus-4-7, gpt-5.4, gpt-5.5, gpt-5.4-2026-03-05, gpt-5.5-2026-04-23, and qwen36-35b-a3b to the LLM enum.

Contextual update metadata: Added contextual_update_info to conversation transcript response items. The field references ContextualUpdateInfo, which includes context_id and is_superseded, so clients can identify contextual updates and whether they have been replaced by later context.

Batch calling filter: Added an optional agent_id query parameter to list workspace batch calling jobs, allowing clients to return jobs for a single agent.

Test invocation listing: Made the agent_id query parameter optional and nullable on list test invocations, allowing clients to list test invocations without filtering by one agent.

MCP response timeout: Increased the maximum response_timeout_secs value from 120 to 300 seconds on MCP server configuration and MCP tool configuration overrides.

Workspaces

Subscription overage: Added current_overage to SubscriptionResponseModel and ExtendedSubscriptionResponseModel.

Resource collections: Added resource_collection to the WorkspaceResourceType enum.

ElevenCreative Studio

Project image status: Added error and pending_task to ProjectImageResponseModel, and made signed image URLs nullable when an image is still processing or has failed.

Pending media fields: Removed legacy pending_block_ids and pending_external_audio_ids fields from project external audio and video response models.

SDK Releases

Python SDK

v2.46.0 - Added keyterms and no_verbatim support to the Scribe realtime API, refactored WebSocket URL construction, and regenerated the SDK for the May 7, 2026 API schema, including conversation tags, conversation list filters, batch calling agent_id filtering, optional test invocation agent_id, contextual update metadata, and MCP response timeout updates.

JavaScript SDK

v2.46.0 - Fern regeneration for the May 7, 2026 API schema, including conversation tags, conversation list filters, batch calling agent_id filtering, optional test invocation agent_id, contextual update metadata, and MCP response timeout updates.

Packages

@elevenlabs/[email protected] - Added keyterms (string[]) and noVerbatim (boolean) options to the Scribe realtime API. keyterms are sent as repeated WebSocket query parameters and can include up to 50 terms of up to 20 characters each. noVerbatim removes filler words, false starts, and disfluencies from transcripts. Also fixed a case where interruptions could cut off agent audio that arrived less than 2 seconds after the interruption.

@elevenlabs/[email protected] - Added shared types for Scribe realtime keyterms and noVerbatim.

@elevenlabs/[email protected], @elevenlabs/[email protected], @elevenlabs/[email protected], and @elevenlabs/[email protected] - Updated to the latest client package, including Scribe realtime options and the agent audio interruption fix.

@elevenlabs/[email protected] - Patch release that includes the Scribe realtime options, the agent audio interruption fix, and an automatic random user ID when none is set.

Android SDK

v0.9.0 - Added support for detecting user audio while the user is muted.

API