MiniMax TTS plugin: speech-2.8-hd model not supported

[ChidambaraRaju]

Description

The LiveKit MiniMax TTS plugin (livekit-plugins-minimax) does not support MiniMax's newer TTS models including speech-2.8-hd, speech-2.8, speech-2.6-hd, etc.

Currently the plugin only accepts these models:

• speech-02-hd
• speech-02-turbo
• speech-01-hd
• speech-01-turbo
• speech-01-240228
• speech-01-turbo-240228

However, MiniMax's API supports newer models:

• speech-2.8-hd (latest HD model)
• speech-2.8-turbo
• speech-2.6-hd
• speech-2.6-turbo
• speech-2.5-hd-preview
• speech-2.5-turbo-preview

Environment

• livekit-plugins-minimax version: 1.2.9
• livekit-agents version: 1.5.x
• Python version: 3.10+

Steps to reproduce

from livekit.plugins import minimax

tts = minimax.TTS(
    model="speech-2.8-hd",
)

Results in validation error: model input should be 'speech-02-hd', 'speech-02-turbo', 'speech-01-hd', 'speech-01-turbo', 'speech-01-240228' or 'speech-01-turbo-240228'

Expected behavior

The plugin should accept any valid MiniMax TTS model string, not just a hardcoded list.

Additional context

MiniMax API documentation shows these models are available:
https://platform.minimax.io/docs/guides/models-intro#audio

[tinalenguyen]

hi @ChidambaraRaju, that error should not arise from the latest version of livekit-plugins-minimax. the TTS also accepts a str for model. could you upgrade to 1.5.5? i also made a PR to add the latest models into TTSModel