diodiogod · diodiogod · Jul 31, 2026
diff --git a/LICENSE b/LICENSE
@@ -44,6 +44,7 @@ The project code is MIT. Model weights carry their own licenses:
   Echo-TTS             CC-BY-NC-SA-4.0                                           No
   Fish Audio S2 Pro    Fish Audio Research License                               No
   Dots TTS             Apache-2.0                                                Yes
+  Audio8 TTS           Apache-2.0                                                Yes
   DramaBox             LTX-2 Community License                                   Conditional
   OmniVoice            Apache-2.0                                                Yes
   MOSS-TTS             Apache-2.0                                                Yes

diff --git a/PROJECT_INDEX.md b/PROJECT_INDEX.md
@@ -17,15 +17,15 @@
 **Key architectural rules:**
 - Chunking happens in the **processor**, not the adapter (`generate_single()` on adapter = raw single call)
 - Runtime routing happens through `ModelLoadConfig.runtime_mode` + `runtime_profile`, not ad-hoc subprocess calls
-- Shared runtime workers are currently used for fragile engine families such as VibeVoice, Qwen3-TTS / ASR, Granite forced alignment, and Higgs Audio 2. Engines that support the modern stack run natively in the main Transformers 5 environment.
+- Shared runtime workers are currently used for fragile engine families such as VibeVoice, Qwen3-TTS / ASR, Granite forced alignment, Higgs Audio 2, and Audio8 TTS. Engines that support the modern stack run natively in the main Transformers 5 environment.
 - YAML (`docs/Dev reports/tts_audio_suite_engines.yaml`) is source of truth for engine doc tables → run `python3 scripts/generate_engine_tables.py --readme` to regenerate
 - Auxiliary YAML (`docs/Dev reports/tts_audio_suite_aux_models.yaml`) is source of truth for helper/post-process model docs → run `python3 scripts/generate_aux_model_docs.py`
 - All models download to `ComfyUI/models/TTS/<model-name>/`
 - Engine registry: `utils/models/engine_registry.py`
 
 ## Engines
 
-19 engines follow the pattern above:
+20 engines follow the pattern above:
 
 | Engine | Adapter | Processor | SRT Processor | Engine Node |
 |--------|---------|-----------|---------------|-------------|
@@ -44,13 +44,14 @@
 | Echo-TTS | `echo_tts_adapter.py` | `nodes/echo_tts/echo_tts_processor.py` | `echo_tts_srt_processor.py` | `echo_tts_engine_node.py` |
 | Fish Audio S2 Pro | `fish_audio_s2_adapter.py` | `nodes/fish_audio_s2/fish_audio_s2_processor.py` | `fish_audio_s2_srt_processor.py` | `fish_audio_s2_engine_node.py` |
 | Dots TTS | `dots_tts_adapter.py` | `nodes/dots_tts/dots_tts_processor.py` | `dots_tts_srt_processor.py` | `dots_tts_engine_node.py` |
+| Audio8 TTS | `audio8_tts_adapter.py` | `nodes/audio8_tts/audio8_tts_processor.py` | `audio8_tts_srt_processor.py` | `audio8_tts_engine_node.py` |
 | DramaBox | `dramabox_adapter.py` | `nodes/dramabox/dramabox_processor.py` | `dramabox_srt_processor.py` | `dramabox_engine_node.py` |
 | OmniVoice | `omnivoice_adapter.py` | `nodes/omnivoice/omnivoice_processor.py` | `omnivoice_srt_processor.py` | `omnivoice_engine_node.py` |
 | MOSS-SoundEffect v2 | `moss_soundeffect_v2_adapter.py` | — | — | `moss_soundeffect_v2_engine_node.py` |
 | RVC | — | `engines/rvc/` | — | `rvc_engine_node.py` |
 
 **Engine implementations live in:**
-- `engines/chatterbox/`, `engines/chatterbox_official_23lang/`, `engines/f5tts/`, `engines/higgs_audio/`, `engines/higgs_audio_v3/`, `engines/vibevoice_engine/`, `engines/step_audio_editx/`, `engines/cosyvoice/`, `engines/qwen3_tts/`, `engines/qwen3_asr/`, `engines/moss_tts/`, `engines/moss_soundeffect_v2/`, `engines/granite_asr/`, `engines/echo_tts/`, `engines/fish_audio_s2/`, `engines/dots_tts/`, `engines/dramabox/`, `engines/omnivoice/`, `engines/rvc/`
+- `engines/chatterbox/`, `engines/chatterbox_official_23lang/`, `engines/f5tts/`, `engines/higgs_audio/`, `engines/higgs_audio_v3/`, `engines/vibevoice_engine/`, `engines/step_audio_editx/`, `engines/cosyvoice/`, `engines/qwen3_tts/`, `engines/qwen3_asr/`, `engines/moss_tts/`, `engines/moss_soundeffect_v2/`, `engines/granite_asr/`, `engines/echo_tts/`, `engines/fish_audio_s2/`, `engines/dots_tts/`, `engines/audio8_tts/`, `engines/dramabox/`, `engines/omnivoice/`, `engines/rvc/`
 
 ## Documentation Files
 
@@ -145,13 +146,14 @@
 - `launcher.py` - runtime bootstrap, venv creation, Windows toolchain env setup
 - `session.py`, `protocol.py` - JSONL worker transport and message protocol
 - `bootstrap.py` - shared runtime bootstrap helpers
-- `vibevoice_proxy.py`, `qwen3_tts_proxy.py`, `qwen3_asr_proxy.py`, `higgs_audio_proxy.py` - parent-process proxies
-- `workers/` - worker subprocess entrypoints for VibeVoice, Qwen3-TTS, Qwen3-ASR/aligner, Higgs Audio
+- `vibevoice_proxy.py`, `qwen3_tts_proxy.py`, `qwen3_asr_proxy.py`, `higgs_audio_proxy.py`, `audio8_tts_proxy.py` - parent-process proxies
+- `workers/` - worker subprocess entrypoints for VibeVoice, Qwen3-TTS, Qwen3-ASR/aligner, Higgs Audio, and Audio8 TTS
 - Current shared legacy T4 runtime profile is reused by:
   - VibeVoice / Kugel
   - Qwen3-TTS
   - Qwen3-ASR and Granite's optional Qwen forced aligner
   - Higgs Audio 2
+  - Audio8 TTS
 
 ### Audio (`utils/audio/`)
 - `processing.py` - Tensor manipulation, normalization, format conversion

diff --git a/README.md b/README.md
@@ -23,7 +23,7 @@ Subtitle workflows are still a core focus: the suite can transcribe to SRT, rebu
 
 <!-- ENGINE_COMPARISON_START -->
 
-## Quick Engine Comparison — 19 Engines
+## Quick Engine Comparison — 20 Engines
 
 | Engine | Languages | Size | Key Features |
 |--------|-----------|------|--------------|
@@ -41,6 +41,7 @@ Subtitle workflows are still a core focus: the suite can transcribe to SRT, rebu
 | **Echo-TTS** | 🇺🇸 | ~5.3GB + ~1.8GB | Diffusion-based (~30s best), Force Speaker KV (speaker drift control) |
 | **Fish Audio S2 Pro** | 🌐 80+ languages | ~10.3GB / ~8.0GB | Free-form sub-word emotion/prosody tags, Native multi-speaker and multi-turn dialogue with dynamic speaker references |
 | **Dots TTS** | 🇺🇸🇨🇳🇩🇪🇪🇸🇫🇷🇮🇹 +13 | ~6GB | Official auto language detect / language control, SOAR and MeanFlow distilled variants |
+| **Audio8 TTS** | 🌐 11 recommended languages | ~2.39 GiB | Reference-free TTS + zero-shot/cross-lingual cloning, 44.1kHz output with sampling or greedy decoding |
 | **DramaBox** | 🇺🇸 | ~16.4GB | Expressive scene prompting and stage directions, Native and SRT-aware duration targeting |
 | **OmniVoice** | 🌐 600+ languages | ~3.7GB | Inline non-verbal tags and pronunciation overrides, Reference-free voice design |
 | **MOSS-TTS** | 🇺🇸🇨🇳🇩🇪🇪🇸🇫🇷🇮🇹 +18 | ~8.5GB tokenizer + ~6.1GB/17GB/18GB model | Reference-free voice design with MOSS-VoiceGenerator, Native 1-5 speaker TTSD dialogue |
@@ -1527,6 +1528,7 @@ For offline/manual setup:
 | Granite ASR | `ComfyUI/models/TTS/granite_asr/` | ✅ | Granite ASR models; plus adds native diarization/timestamps, optional Qwen forced aligner reused lazily for timestamps/SRT fallback |
 | Echo-TTS | `ComfyUI/models/TTS/echo-tts-base/` | ✅ | ~7.1GB total (base + dac); CC-BY-NC-SA |
 | Dots TTS | `ComfyUI/models/TTS/dots_tts/` | ✅ | Official base / soar / mf checkpoints with tokenizer, vocoder, speaker encoder |
+| Audio8 TTS | `ComfyUI/models/TTS/audio8_tts/Audio8-TTS-Preview-0.6b/` | ✅ | ~2.39 GiB official 0.6B Preview checkpoint; shared Transformers 4.57.3 runtime required because main 5.10.2 collapses voice cloning |
 | DramaBox | `ComfyUI/models/TTS/dramabox/DramaBox/` | ✅ | ~16.4GB download; fast mode roughly 24GB VRAM; experimental FP8 peaks on RTX 4090: staged ~15.1GB allocated, sequential ~11.7GB allocated / ~12.4GB reserved; conditional LTX-2 Community License |
 | Fish Audio S2 Pro | `ComfyUI/models/TTS/fish_audio_s2_pro/` | ✅ | Official BF16 or optional community FP8 checkpoint; the official checkpoint can be quantized on load with BNB INT8/NF4; main T5 environment with process teardown for Clear VRAM; Fish Audio Research License |
 | OmniVoice | `ComfyUI/models/TTS/omnivoice/` | ✅ | Official OmniVoice model. Voice cloning in this suite requires explicit reference text. |

diff --git a/docs/Dev reports/tts_audio_suite_engines.yaml b/docs/Dev reports/tts_audio_suite_engines.yaml
@@ -1339,6 +1339,77 @@ engines:
       speed_performance: { supported: "partial", notes: "Moderate; mf variant is faster" }
       reference_free_tts: { supported: true, notes: "(default speaker)" }
 
+  - id: audio8_tts
+    name: Audio8 TTS
+    models: "Audio8 TTS Preview 0.6B"
+    size: "~2.39 GiB"
+    license: "Apache-2.0"
+    commercial: true
+    language_summary_full: "11 recommended languages (including Cantonese)"
+    language_summary_compact: "🌐 11 recommended languages"
+
+    capabilities:
+      tts: true
+      srt: true
+      vc: false
+      asr: false
+      training: false
+
+    runtime_isolation:
+      default_mode: "shared_runtime"
+      main_environment: false
+      shared_runtime: true
+      dedicated_runtime: false
+      runtime_profile: "vibevoice_transformers4_shared"
+      notes: "Required for feature-complete Audio8 inference: main Transformers 5.10.2 collapsed the official voice-clone demo to 0.325s, while the shared Transformers 4.57.3 runtime generated 10.495s for the published 10.54s demo"
+
+    readme_key_features:
+      - "Reference-free TTS + zero-shot/cross-lingual cloning"
+      - "44.1kHz output with sampling or greedy decoding"
+
+    special_features:
+      - "44.1kHz reference-free TTS and zero-shot/cross-lingual voice cloning"
+      - "Exact reference transcript required when voice cloning"
+      - "Greedy or sampled decoding with temperature, top-p, top-k, seed, and token-limit controls"
+      - "Suite text chunking, character switching, and SRT timing/assembly"
+      - "No explicit language selector; multilingual behavior is text-driven"
+      - "No native emotion/style/speed controls, streaming, timestamps, dialogue/multi-speaker mode, or presets"
+      - "Not compatible with Voice Designer: the official model has no instruction-conditioned voice-design mode"
+      - "Unified TTS/SRT integration only; no special node or suite training integration"
+
+    model_sources:
+      - component: "Audio8 TTS Preview 0.6B"
+        source_name: "Audio8/Audio8-TTS-Preview-0.6b"
+        source_url: "https://huggingface.co/Audio8/Audio8-TTS-Preview-0.6b"
+        size: "~2.39 GiB"
+        auto_download: true
+        notes: "Official 0.6B Preview checkpoint with bundled 44.1kHz codec; suite uses the shared Transformers 4.57.3 runtime because voice cloning is not compatible with main Transformers 5.10.2"
+
+    languages:
+      en: { supported: true, flag: "🇺🇸", notes: "" }
+      zh: { supported: true, flag: "🇨🇳", notes: "(Chinese; upstream separately recommends Cantonese, folded into this matrix row)" }
+      de: { supported: true, flag: "🇩🇪", notes: "" }
+      es: { supported: true, flag: "🇪🇸", notes: "" }
+      fr: { supported: true, flag: "🇫🇷", notes: "" }
+      it: { supported: true, flag: "🇮🇹", notes: "" }
+      ja: { supported: true, flag: "🇯🇵", notes: "" }
+      ko: { supported: true, flag: "🇰🇷", notes: "" }
+      pl: { supported: true, flag: "🇵🇱", notes: "" }
+      nl: { supported: true, flag: "🇳🇱", notes: "" }
+
+    features:
+      voice_cloning: { supported: true, notes: "Zero-shot and cross-lingual; reference audio must be paired with its exact transcript" }
+      reference_transcript: { requirement: conditional }
+      native_multi_speaker: { supported: false, notes: "No native dialogue or multi-speaker interface; suite character switching generates speakers as separate segments" }
+      voice_conversion: { supported: false, notes: "No separate voice-conversion mode" }
+      asr_transcribe: { supported: false, notes: "" }
+      emotion_control: { supported: false, notes: "No native emotion, style, or speed controls" }
+      native_long_form: { supported: false, notes: "(uses suite text chunking and SRT assembly)" }
+      community_finetunes: { supported: false, notes: "No community model or upstream SFT/training integration in the suite" }
+      vram_efficient: { supported: "partial", notes: "~1.75 GiB model-plus-codec parameter memory at fp16/bf16 or ~3.5 GiB at float32/CPU, before KV cache, activations, and framework overhead; shared runtime reuses the main environment's PyTorch" }
+      speed_performance: { supported: "partial", notes: "Live shared-runtime validation: 6.36s reference-free audio in 39.3s including load; 9.99s cloned audio in 36.7s warm; exact cache reuse in 56ms" }
+      reference_free_tts: { supported: true, notes: "Reference audio is optional" }
+
   - id: dramabox
     name: DramaBox
     models: "DramaBox 3.3B"
@@ -1903,15 +1974,17 @@ table_notes:
   reference_transcript: >-
     Conditional means the transcript is required only for the specific mode:
     CosyVoice3 zero-shot, Qwen3-TTS full Base cloning, or MOSS-TTSD cloned-speaker
-    dialogue. Higgs Audio 2, Higgs Audio v3, and Dots TTS accept matching text
-    when provided but do not require it.
+    dialogue, and Audio8 TTS zero-shot/cross-lingual cloning. Higgs Audio 2,
+    Higgs Audio v3, and Dots TTS accept matching text when provided but do not
+    require it.
   language_support:
     - "**CosyVoice3 Chinese**: Includes 18+ dialects (Cantonese, Sichuan, Dongbei, Shanghai, etc.)"
     - "**Higgs Audio 2**: Trained on EN, ZH (Mandarin), KO, DE, ES (English majority) - 10M hours AudioVerse dataset"
     - "**Higgs Audio v3**: Official model card lists 102 languages total: 85 polished-production languages and 17 usable but less polished languages."
     - "**IndexTTS-2**: Trained on 55K+ hours - ZH, EN, JA primary."
     - "**MOSS-TTS**: Official list includes ZH, EN, DE, ES, FR, JA, IT, HU, KO, RU, FA, AR, PL, PT, CS, DA, SV, EL, TR; HU/FA/CS are not separate columns in this matrix."
     - "**OmniVoice**: Official model supports 600+ languages; this matrix only shows the suite's comparison subset."
+    - "**Audio8 TTS**: The Preview recommends Cantonese, Chinese, Dutch, English, French, German, Italian, Japanese, Korean, Polish, and Spanish. It has no explicit language selector; language behavior is text-driven. Cantonese is folded into the Chinese row in this matrix."
     - "**RVC**: Language-agnostic voice conversion/post-processing; it is marked supported for every language row."
     - "Qwen3-TTS: Supports pt-BR only with instruction (voice design or harcoded voices). Base can't do instructions, so it will always ouput pt-PT."
 
@@ -1980,6 +2053,10 @@ readme_model_download_table:
     primary_model_path: "ComfyUI/models/TTS/dots_tts/"
     auto_download: "✅"
     notes: "Official base / soar / mf checkpoints with tokenizer, vocoder, speaker encoder"
+  - engine: "Audio8 TTS"
+    primary_model_path: "ComfyUI/models/TTS/audio8_tts/Audio8-TTS-Preview-0.6b/"
+    auto_download: "✅"
+    notes: "~2.39 GiB official 0.6B Preview checkpoint; shared Transformers 4.57.3 runtime required because main 5.10.2 collapses voice cloning"
   - engine: "DramaBox"
     primary_model_path: "ComfyUI/models/TTS/dramabox/DramaBox/"
     auto_download: "✅"
@@ -2423,6 +2500,22 @@ model_layouts_markdown: |
   - Native sample rate is 48kHz.
   - Main-environment support works on Transformers 5; on Windows, `normalize_text` falls back to no-op if `WeTextProcessing` is unavailable.
 
+  ## Audio8 TTS
+
+  ```text
+  ComfyUI/models/TTS/audio8_tts/
+  └── Audio8-TTS-Preview-0.6b/
+      └── (13 required official runtime files, including codec weights)
+  ```
+
+  Notes:
+
+  - The official `Audio8/Audio8-TTS-Preview-0.6b` checkpoint is about 2.39 GiB and includes the 44.1kHz neural codec.
+  - The 0.6B model plus codec use about 1.75 GiB for parameters at fp16/bf16 or about 3.5 GiB at float32/CPU, before KV cache, activations, and framework overhead.
+  - The suite uses the existing `vibevoice_transformers4_shared` runtime with Transformers 4.57.3. Main Transformers 5.10.2 is not compatible with Audio8 voice cloning: the official demo collapsed to 0.325s, while the shared runtime generated 10.495s for the published 10.54s demo.
+  - Live shared-runtime validation produced 6.36s of reference-free audio in 39.3s including model load, 9.99s of cloned audio in 36.7s warm, and exact cache reuse in 56ms.
+  - The engine has unified TTS and SRT support only: no Voice Designer support, special node, training integration, native streaming/timestamps/dialogue, or built-in presets.
+
   ## OmniVoice
 
   ```text