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IndexTTS-2

indexteamindexteam/indextts-2

IndexTeam's neural TTS model. Eight preset voices, plus voice cloning from a reference clip you supply.

Context Length
--
Max Output
--
Text Priceper 1M UTF-8 bytes
$7.72/ 1M UTF-8 bytes

Modalities

text→audio

Capabilities

TTS

Media Generation Capabilities

tts
output_formats
  • mp3
voice_selection
  • preset
voices
  • IndexTeam/IndexTTS-2:alex
  • IndexTeam/IndexTTS-2:anna
  • IndexTeam/IndexTTS-2:bella
  • IndexTeam/IndexTTS-2:benjamin
  • IndexTeam/IndexTTS-2:charles
  • IndexTeam/IndexTTS-2:claire
  • IndexTeam/IndexTTS-2:david
  • IndexTeam/IndexTTS-2:diana
reference_audio
  • formats: mp3, wav
  • max 30s
  • 10s recommended
  • transcript required
  • supply via: file_id | data_uri
named_voices
  • reusable voices via POST /v1/audio/voices
defaults
voice
IndexTeam/IndexTTS-2:alex

Pricing Breakdown

TypeRate
Text$7.72 / 1M UTF-8 bytes

request is price per 1M UTF-8 bytes

Supported Parameters

inputvoiceresponse_formatspeed

API Usage Examples

Use the global api.therouter.ai endpoint shown below for new integrations; the legacy China accelerated endpoint is retired.

cURL
curl https://api.therouter.ai/v1/audio/speech   -H "Content-Type: application/json"   -H "Authorization: Bearer $THE_ROUTER_API_KEY"   -d '{
    "model": "indexteam/indextts-2",
    "input": "Welcome to TheRouter.",
    "voice": "alloy"
  }'
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