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Model ListMOSS-TTS-v1.5-Flash

MOSS-TTS-v1.5-Flash

RecommendedSpeech generation

MOSS-TTS-v1.5-Flash is designed for low-latency streaming speech generation. It provides high-fidelity voice cloning and speech control while continuously returning audio chunks with stream=true.

View API reference

ENDPOINT

POST /v1/audio/speech

Current request path

Input

Text + voice_id

Content accepted by the request

Output

Audio

Content returned on success

Model overview

Single-speaker text-to-speech model. Use the stable model ID moss-tts-1.5-flash by default; to reproduce a fixed version, pass moss-tts-1.5-flash-2026-06-26 in model.

Billing

This page does not include placeholder pricing. Refer to console pricing and bills for actual units and rates.

ItemUnit priceDescription
Model invocationSee pricingUsage is measured from actual requests and outputs. Refer to console bills for the final amount.

Modality support

TTextInput only
AAudioOutput only
IImageNot supported
VVideoNot supported

Supported endpoints

Single-speaker speech/v1/audio/speechSupported
Multi-speaker dialogue speech/v1/audio/speech/speakersNot supported
Audio transcription/v1/audio/transcriptionsNot supported
Voice design/v1/audio/voice/generationsNot supported
Multimodal understanding/v1/responsesNot supported

Capabilities

PerformanceHigher
Inference speedMedium
Streaming Supported
Async Supported
  • 32,768-token context window
  • Up to 7,500 output tokens
  • Cantonese supported
  • 30+ languages supported
  • Phoneme-level pronunciation control & token-level duration control

Versions and snapshots

Model IDmoss-tts-1.5-flash
Snapshotmoss-tts-1.5-flash-2026-06-26Streaming version