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LongCat Avatar 1.5

LongCat Avatar 1.5, a lipsync model from WaveSpeed.
lipsyncModelOverride: { model: "longcat-avatar-1.5" }
Meituan·served viaWaveSpeed·Released 2026
Pricing
List price
$0.04-$0.08/second
Per generation
$0.00010
Specifications
Context window
2,000 tokens
Aspect ratios
2
Released
2026
Model string
wavespeed-ai/longcat-avatar-1.5
Parameters
Model options, passed in lipsyncModelOverride.config.
ParameterTypeDefaultRange / options
$modeSelectsinglesinglemulti
image
Portrait to animate into a talking video.
Image URL——
audio
Speech to lip sync to, up to 64 seconds.
Audio URL——
left_audio
Speech for the person on the left.
Audio URL——
right_audio
Speech for the person on the right.
Audio URL——
order
Whether the two speakers talk at the same time or take turns. Defaults to the same time.
Select—meanwhileleft_rightright_left
prompt
Optional description of the expression and movement.
Prompt——
resolution
The resolution of the output video.
Select480p480p720p
seedSeed-1—
Use this model
await mindstudio.generateLipsync({
  lipsyncModelOverride: {
    model: "longcat-avatar-1.5",
    config: {
      image: "...",
      audio: "...",
      left_audio: "...",
      right_audio: "...",
      order: "meanwhile",
      resolution: "480p",
    },
  },
});