--- title: Heavy Krel API | Voice Cover | ModelsLab description: Build with Heavy Krel API. Voice Cover powered by AI. Plans from $21/month. url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/heavy-krel.md canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/heavy-krel type: product component: Playground/Endpoint/Index generated_at: 2026-08-03T05:15:59.593218Z --- [![Heavy Krel thumbnail](https://assets.modelslab.ai/api-logos/01KPMZY676ZM0Z7YJWBM9C78QP.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab)Heavy Krel --- [by ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab)The Voice Cover endpoint allows you to transform a song or audio file into a celeb/fictional character/singer/politician voice using a proper model id of that character. `heavy-krel` Open Source Model [Unlimited Usage](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) [LLMs.txt](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/heavy-krel/llms.txt) [API Playground](/models/modelslab/heavy-krel)ShowcaseAPI DocumentationVibe CodeRelated ModelsDeveloper SupportModel SpecsEnterprise Deployment Input --- Init Audio Upload File preview or record audio Record Audio Model ID Pitch Login to Generate **Per Audio generation** will cost **0.0047$** **For premium plan Audio generation** will cost **0.00$** i.e **Free.** Output --- Idle Unknown content type Related Models --- Discover similar models you might be interested in [View all Audio Models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models?feature=audiogen) [![Sniper](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/sniper.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/sniper)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Sniper](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/sniper) [![Ahmetkaya](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/ahmetkaya.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/ahmetkaya)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Ahmetkaya](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/ahmetkaya) [![Noav](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/noav.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/noav)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Noav](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/noav) [![Soft Momo](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/soft-momo.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/soft-momo)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Soft Momo](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/soft-momo) [![Tyrone](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/tyrone.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/tyrone)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Tyrone](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/tyrone) [![Ryujin](https://images.modelslab.sh/?Image=https://assets.modelslab.ai/audio/Thumbnail1024/ryujin.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/ryujin)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [Ryujin](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/ryujin) View all 18 related models About Heavy Krel --- Heavy Krel is a voice cloning AI model by ModelsLab available on ModelsLab. Access Heavy Krel through our API with pay-per-use pricing and no minimum commitments. ### Technical Specifications Model IDheavy-krel ProviderModelsLab CategoryAudio Models TaskVoice Cloning Price$0.0047 per API call AddedDecember 20, 2023 ### Key Features - AI voice synthesis and text-to-speech - Multiple language and accent support - Voice cloning from short audio samples - Real-time audio processing via API - Customizable speech parameters ### Quick Start Integrate Heavy Krel into your application with a single API call. Get your API key from the [pricing page](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v6/voice/voice_cover" headers = { "Content-Type": "application/json" } data = { "model_id": "heavy-krel", "prompt": "your prompt here", "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` ### Pricing Heavy Krel API costs $0.0047 per API call. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) ### Use Cases - Voice-over production for video content - Podcast and audiobook narration - Multilingual customer support automation - Interactive voice response (IVR) systems [Browse Audio Models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models?feature=audiogen) [More from ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [View Pricing](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) Heavy Krel FAQ --- ### What is Heavy Krel? Heavy Krel is a voice cloning AI model by ModelsLab available on ModelsLab. Access it through our API with pay-per-use pricing and no minimum commitments. ### How do I use the Heavy Krel API? You can integrate Heavy Krel into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "heavy-krel" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Heavy Krel cost? Heavy Krel costs $0.0047 per API call. ModelsLab plans start at $21/month (Basic), and the $149/month Open Source plan includes unlimited generation on open-source models. ### What is the Heavy Krel model ID? The model ID for Heavy Krel is "heavy-krel". Use this ID in your API requests to specify this model. ### Do I need a paid plan to use Heavy Krel? Yes. ModelsLab is subscription-based with no free tier — plans start at $21/month (Basic, 3,250 API calls). The $149/month Open Source Unlimited plan includes unlimited generation across open-source models; premium third-party models are billed per call from your wallet. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-08-03*