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#	docs/PROVIDERS.md
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@@ -20,10 +20,11 @@ Everything you need to know about every provider in OpenMontage — setup instru
| 8 | **pay-as-you-go** | Kling Official | Official direct Kling video, image, TTS, avatar, and lip-sync API, separate from fal.ai Kling |
| 9 | **pay-as-you-go** | Volcengine Ark | Official direct Seedance 2.0 Standard/Fast/Mini API |
| 10 | **$12/month** | Runway | Gen-4 video — highest quality AI video |
| 11 | **pay-as-you-go** | HeyGen | Avatar videos, multi-model video gateway |
| 12 | **pay-as-you-go** | Suno | Full song generation with vocals and lyrics |
| 13 | **$0 + GPU** | Local video gen | WAN 2.1, Hunyuan, CogVideo, LTX — free, offline |
| 14 | **$0 + GPU** | Local Diffusion | Stable Diffusion images — free, offline |
| 11 | **pay-as-you-go** | Hunyuan cloud video | Chinese-friendly T2V + I2V |
| 12 | **pay-as-you-go** | HeyGen | Avatar videos, multi-model video gateway |
| 13 | **pay-as-you-go** | Suno | Full song generation with vocals and lyrics |
| 14 | **$0 + GPU** | Local video gen | WAN 2.1, Hunyuan, CogVideo, LTX — free, offline |
| 15 | **$0 + GPU** | Local Diffusion | Stable Diffusion images — free, offline |
### Environment Variable Summary
@@ -66,6 +67,9 @@ HEYGEN_API_KEY= # HeyGen avatar video gateway
RUNWAY_API_KEY= # Runway Gen-4 video (direct)
SUNO_API_KEY= # Suno music generation
# TENCLOUD HUNYUAN VIDEO
TENCENT_TOKENHUB_API_KEY= # Tencent Hunyuan cloud video via TokenHub API
# LOCAL (no keys needed — just GPU + install)
VIDEO_GEN_LOCAL_ENABLED= # Set to "true" for local video gen
VIDEO_GEN_LOCAL_MODEL= # wan2.1-1.3b, wan2.1-14b, hunyuan-1.5, ltx2-local, cogvideo-5b
@@ -500,6 +504,79 @@ Doubao Speech 2.0 is billed by character package or usage in Volcengine. OpenMon
---
### Tencent Hunyuan Cloud — Video Generation
> **Tencent Hunyuan (腾讯混元) cloud video generation via TokenHub API.** Generates
> videos from text or images using Tencent's Hunyuan models through the Tencent
> TokenHub API — an OpenAI-compatible gateway (tokenhub.tencentmaas.com) with
> simple Bearer-token authentication. No TC3-HMAC-SHA256 signing required.
**Tools unlocked:** `hunyuan_cloud_video`
**Env var:** `TENCENT_TOKENHUB_API_KEY`
#### Setup
1. Go to the [Tencent Cloud TokenHub console](https://console.cloud.tencent.com/tokenhub).
2. Create an application or navigate to the **API Key** section.
3. Generate an API key and copy its value.
4. Add to `.env`:
```bash
TENCENT_TOKENHUB_API_KEY=your-tokenhub-api-key
```
#### What It's Best For
- **Chinese-friendly prompt understanding** — Hunyuan models natively understand Chinese prompts better than most Western APIs
- **Simple auth** — Bearer token, no complex signing (just an HTTP Authorization header)
- **Direct Tencent Cloud quota** — uses your own Tencent Cloud credits, not a third-party gateway mark-up
- **Both T2V and I2V** — one API key unlocks text-to-video and image-to-video
#### API Notes
TokenHub uses a **submit-then-poll** pattern:
```text
# Submit a generation task
POST https://tokenhub.tencentmaas.com/v1/api/video/submit
Authorization: Bearer ${TENCENT_TOKENHUB_API_KEY}
# Poll for results
POST https://tokenhub.tencentmaas.com/v1/api/video/query
Authorization: Bearer ${TENCENT_TOKENHUB_API_KEY}
```
| Model | Type | Pricing |
|-------|------|---------|
| `hy-video-1.5` | Text-to-video | 1.5 credits (~$0.25) |
| `yt-video-2.0` | Image-to-video | 2–5 credits (~$0.33–0.83) |
Resolution options: **720p** (default) or **1080p**.
A watermark (`logo_add`) is added by default. Set `logo_add: 0` to disable it (requires console approval from Tencent).
**Schema constraints:**
- **Prompt:** max 200 UTF-8 characters
- **Image:** max 10MB, 50–5000 px per side, aspect ratio 1:4 to 4:1
- **Formats:** jpg, png, jpeg, webp, bmp, tiff
#### Fallback Tools
If `hunyuan_cloud_video` returns an error, the agent may retry with: `jimeng_video`, `kling_official_video`, `minimax_video`
#### Pricing
Tencent TokenHub uses a credit-based pricing system (1 credit = 1.2 RMB ≈ $0.167 USD):
| Model | Resolution | Credits | Estimated USD |
|-------|-----------|---------|---------------|
| HY-Video-1.5 | any | 1.5 | ~$0.25 |
| YT-Video-2.0 | 480p | 2 | ~$0.33 |
| YT-Video-2.0 | 720p / 1080p | 5 | ~$0.83 |
> **Free tier:** Tencent occasionally offers new-user credits for TokenHub. Check the [TokenHub console](https://console.cloud.tencent.com/tokenhub) for current promotions.
---
### Azure AI Speech — Speech-to-Text
> **Cloud transcription.** Azure AI Speech Fast Transcription turns local audio into text with word-level timestamps, speaker diarization, and multi-language identification — no GPU required. Optional: the local faster-whisper `transcriber` remains the default offline STT path. When `AZURE_SPEECH_KEY` is set, the agent prefers `azure_stt` for cloud transcription.
@@ -1101,6 +1178,7 @@ These tools require only FFmpeg or Python packages — no GPU, no API key.
| **Higgsfield** | `HIGGSFIELD_API_KEY` + `HIGGSFIELD_API_SECRET` | `higgsfield_video` | Subscription ($15-84/mo) |
| **HeyGen** | `HEYGEN_API_KEY` | `heygen_video` | Pay-as-you-go |
| **Suno** | `SUNO_API_KEY` | `suno_music` | Pay-as-you-go |
| **Tencent Hunyuan** | `TENCENT_TOKENHUB_API_KEY` | `hunyuan_cloud_video` | Pay-as-you-go (~$0.25–0.83/gen) |
| **Local GPU** | `VIDEO_GEN_LOCAL_ENABLED` | `wan_video`, `hunyuan_video`, `cogvideo_video`, `ltx_video_local` | Free (GPU required) |
| **Local Diffusion** | — (install only) | `local_diffusion` | Free (GPU required) |
| **Modal** | `MODAL_LTX2_ENDPOINT_URL` | `ltx_video_modal` | Self-hosted cloud |
@@ -1114,7 +1192,7 @@ How many providers cover each capability:
| Capability | Cloud Providers | Local Providers | Free Options |
|-----------|----------------|-----------------|--------------|
| **Image Generation** | FLUX, Kling Official, Grok, Google Imagen, GPT Image 2, Recraft | Local Diffusion | Pexels, Pixabay (stock) |
| **Video Generation** | Grok, Kling Official, Kling via fal.ai, Seedance via Volcengine Ark, Runway, Veo, Gemini Omni, Higgsfield, MiniMax, HeyGen | WAN, Hunyuan, CogVideo, LTX | Pexels, Pixabay (stock) |
| **Video Generation** | Grok, Kling Official, Kling via fal.ai, Seedance via Volcengine Ark, Runway, Veo, Gemini Omni, Higgsfield, MiniMax, HeyGen, Tencent Hunyuan | WAN, Hunyuan, CogVideo, LTX | Pexels, Pixabay (stock) |
| **Text-to-Speech** | ElevenLabs, fish.audio, Google TTS, Kling Official, OpenAI | Piper | Piper, Google free tier, ElevenLabs free tier, fish.audio s2.1-pro-free |
| **Music Generation** | ElevenLabs, Suno, Google Lyria | — | ElevenLabs free tier |
| **Post-Production** | — | FFmpeg (compose, stitch, trim, mix, enhance, grade) | All free |