Qwen3-TTS-12Hz-0.6B-Base

Qwen3-TTS 12Hz 0.6B Base (Apple Silicon)

TheStage Apple SDK

Original model: Qwen/Qwen3-TTS-12Hz-0.6B-Base (Qwen / Alibaba)

On-device Qwen3-TTS (12 Hz talker + MTP + codec) packaged by TheStage AI for Apple Silicon. Batch and push-based streaming via the TheStage Apple SDK; 24 kHz mono PCM out.

Overview

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This repo hosts CoreML engine bundles for Qwen3-TTS on the TheStage Apple SDK. start_model detects the MTP / talker layout and routes to Qwen3TTSPipeline automatically (vs NeuTTS).

System Requirements

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Simulator is not supported — run on real Apple Silicon hardware.

TheStage AI Access Token

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Create a token at app.thestage.ai and pass it to the SDK:

try await TheStageAI.shared.initialize(apiToken: "th_…")

await TheStageFlutterSDK.initialize(api_token: 'th_…');

Token is checked online in initialize (once per app process when reachable). Inference runs fully on-device. Offline initialize fails — reconnect and call initialize again.

TheStage Apple SDK

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Docs: TheStage Apple SDK · TTS · Repo: TheStage Apple SDK

Installation (SwiftPM)

In Xcode: File → Add Package Dependencies…, paste https://github.com/TheStageAI/AppleSDK.git, and add the TheStageSDK product. Or in Package.swift:

.package(
    url: "https://github.com/TheStageAI/AppleSDK.git",
    exact: Version(1, 1, 0)
)

Installation (Flutter / iOS)

# pubspec.yaml
dependencies:
  thestage_apple_sdk:
    git:
      url: https://github.com/TheStageAI/AppleSDK.git
      path: plugin/thestage_apple_sdk
      ref: 1.1.0

Swift — batch

import TheStageSDK

try await TheStageAI.shared.initialize(apiToken: "th_…")

let tts = try await Qwen3TTSPipeline(
    engines_path: "TheStageAI/Qwen3-TTS-12Hz-0.6B-Base",
    voice_id: "b_ref"
)

let result = tts.infer(text: "Hello, world!")
// result.samples: [Float] @ 24 kHz mono

Swift — streaming

Same push pattern as NeuTTS: open_streamer() → drain output concurrently → send(...) → stop_stream().

Flutter (iOS)

await TheStageFlutterSDK.start_model(
  model_name: 'tts',
  engines_path: 'TheStageAI/Qwen3-TTS-12Hz-0.6B-Base',
  config: {'voice_id': 'b_ref'},
);

final result = await TheStageFlutterSDK.infer(
  model_name: 'tts',
  input_json: {'text': 'Hello, world!'},
);

Sampling defaults come from the bundle (talker typically ~temperature=0.9, top_k=50); override via TTSGenerationConfig / JSON config.

On-device latency

Release build on Apple M2 Max (NPU / ANE), macOS 26.2 (guidance, not an SLA):

Acknowledgments

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This work builds on Qwen3-TTS-12Hz-0.6B-Base by Qwen / Alibaba: Qwen/Qwen3-TTS-12Hz-0.6B-Base.

This Apple Silicon package is produced by TheStage AI; it is not an official Qwen release.

Links

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• Original model: Qwen/Qwen3-TTS-12Hz-0.6B-Base
• Platform: app.thestage.ai
• TheStage Apple SDK: github.com/TheStageAI/AppleSDK
• Docs: docs.thestage.ai
• Subscribe for updates: TheStageAI X
• Contact email: [email protected]