Support Ticket for VAPI.ai – 11Labs Voice Not Changing Issue Description: I’m trying to use a specific 11Labs voice in VAPI.ai for outbound calls, but it always defaults to a different (woman’s) voice, despite correctly syncing and configuring the desired voice in my account. Steps Taken: 1. Connected my 11Labs API key three times to ensure correctness. 2. Verified the API key is valid by testing it successfully (e.g., directly hitting 11Labs endpoints). 3. Synced voices in VAPI.ai (“Sync Voices” button), and the desired voice shows up correctly. 4. In 11Labs, the chosen voice is under “My Voices,” and I can confirm it works when testing on 11Labs directly. 5. Modified my VAPI.ai code (see snippet below) to specify the correct voice ID and 11Labs provider. However, the call logs or actual calls still use a default female voice. Code Snippet:

json
{
  "assistant": {
    "voice": {
      "provider": "11labs",
      "voiceId": "YOUR_11LABS_VOICE_ID",
      "language": "de",
      "model": "eleven_multilingual_v2"
    },
    "transcriber": {
      "provider": "deepgram",
      "model": "nova-2",
      "language": "de"
    },
    "model": {
      "provider": "openai",
      "model": "YOUR_OPENAI_MODEL",
      "maxTokens": 500,
      "temperature": 0.1,
      "messages": [
        {
          "role": "assistant",
          "content": "Beispielfrage..."

Code Cut short due to posting length restrictions.

Could you please advise on any troubleshooting steps or confirm if there is a known issue with 11Labs voice selection for outbound calls? Any help would be greatly appreciated.

Hi there! 👋 I understand you're having trouble with your 11Labs voice not changing in VAPI.ai for outbound calls. I'm unable to analyze your complete code snippet since it was cut short in your message. However, I can definitely help with troubleshooting steps and share information about known issues with 11Labs voice integration. Based on the information I found, here are some troubleshooting steps you can try: ### API Key and Voice Ownership - If you're using your own 11Labs API key and the voice is owned by you, make sure the voice exists in your 11Labs account. Some users have solved similar issues by using their own 11Labs API key [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1341422833321902140). - Interestingly, if you're trying to use a VAPI provided voice, try removing your API key [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1341348892402384896). ### Voice Model - Try changing the 11Labs model from "eleven_multilingual_v2" to "turbo" [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1341348892402384896). - Some users have reported success with the turbo model instead of the flash model [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1339216932351643729). ### Voice ID - Try these specific voice IDs that have worked for others: sT3JzBZxswthXatAZOfU, uCYqF9IFOZ2d49uXxqTS, gwkJJ9iWUnQo4EVQJbm8 [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1341560247164342373). - Another voice ID to try is: EPRs7SRVCKTec3tdEg0I [(Source)](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1339216932351643729). ### VAPI Dashboard

Hey! To help track down this issue, could you share: - The call ID - What voiceIDyou expected to get - What voiceID you actually got instead This would really help us figure out what went wrong!

Hi, I wanted this "provider": "11labs", "voiceId": "FTNCalFNG5bRnkkaP5Ug", "language": "de", "model": "eleven_multilingual_v2" }, and got this: "id": "b6067b92-68c3-484a-8fe6-6dd801dcd475" "type": "voice", "voice": { "model": "eleven_multilingual_v2", "voiceId": "FTNCalFNG5bRnkkaP5Ug", "provider": "11labs" }, But it was not this voice, it was a default women voice.

Hi, checking if this is resolved/solved for you?