CosyVoice v1 Retired: Please Migrate to v2 or v3

2026-09-14
UnifiedTTS Team

Alibaba Cloud CosyVoice v1 is no longer available. We have retired cosyvoice-v1 from UnifiedTTS. Requests using this model ID now return "model not supported".

Recommended replacements

Previous model Recommended replacement Pricing
cosyvoice-v1 cosyvoice-v2 200 credits / 1,000 characters (same as v1)
cosyvoice-v1 cosyvoice-v3-flash 100 credits / 1,000 characters (cheaper, 31 high-quality Chinese voices)

For higher quality, you can also use cosyvoice-v3-plus (200 credits / 1,000 characters, 2 flagship voices).

You need to update both model and voice: v1 voice IDs cannot be used with v2 as-is.

Voice migration

Most v1 voices have a direct v2 counterpart: append _v2 to the original ID.

v1 voice v2 voice Name
longwan longwan_v2 Longwan 2.0
longcheng longcheng_v2 Longcheng 2.0
longhua longhua_v2 Longhua 2.0
longxiaochun longxiaochun_v2 Longxiaochun 2.0
longxiaoxia longxiaoxia_v2 Longxiaoxia 2.0
longxiaocheng longxiaocheng_v2 Longxiaocheng 2.0
longxiaobai longxiaobai_v2 Longxiaobai 2.0
longlaotie longlaotie_v2 Longlaotie 2.0
longshu longshu_v2 Longshu 2.0
longshuo longshuo_v2 Longshuo 2.0
longjing longjing_v2 Longjing 2.0
longmiao longmiao_v2 Longmiao 2.0
longyue longyue_v2 Longyue 2.0
longyuan longyuan_v2 Longyuan 2.0
longfei longfei_v2 Longfei 2.0
longjielidou longjielidou_v2 Longjielidou 2.0
loongstella loongstella_v2 Stella 2.0
loongbella loongbella_v2 Bella 2.0

These 2 v1 voices have no direct v2 counterpart. Please pick a replacement from the v2 / v3 voice list:

  • longtong (Longtong)
  • longxiang (Longxiang)

Use /api/v1/tools/models and the voice listing APIs to see currently available options.

Example

Before:

{
  "model": "cosyvoice-v1",
  "voice": "longxiaochun",
  "text": "Hello, welcome to UnifiedTTS"
}

After:

{
  "model": "cosyvoice-v2",
  "voice": "longxiaochun_v2",
  "text": "Hello, welcome to UnifiedTTS"
}

If you have any questions, please contact us by email.