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Description

Microsoft Foundry Models centralizes more than 11,000 leading AI models, offering enterprises a single place to explore, compare, fine-tune, and deploy AI for any use case. It includes top-performing models from OpenAI, Anthropic, Cohere, Meta, Mistral AI, DeepSeek, Black Forest Labs, and Microsoft’s own Azure OpenAI offerings. Teams can search by task—such as reasoning, generation, multimodal, or domain-specific workloads—and instantly test models in a built-in playground. Foundry Models simplifies customization with ready-to-use fine-tuning pipelines that require no infrastructure setup. Developers can upload internal datasets to benchmark and evaluate model accuracy, ensuring the right fit for production environments. With seamless deployment into managed instances, organizations get automatic scaling, traffic management, and secure hosting. The platform is backed by Azure’s enterprise-grade security and over 100 compliance certifications, supporting regulated industries and global operations. By integrating discovery, testing, tuning, and deployment, Foundry Models dramatically shortens AI development cycles and speeds time to value.

Description

Muse Spark Open is an open-weight foundation model developed by Meta to support multimodal reasoning, autonomous agents, and complex software development tasks. The model features 816 billion total parameters with approximately 42 billion active parameters and a context window supporting up to one million tokens. Its architecture is designed to process multimodal information while maintaining context across lengthy workflows, extensive codebases, and multistep assignments. Muse Spark Open provides capabilities for software engineering, code generation, debugging, application development, and automated testing. Its agentic functionality supports external tool interactions, task planning, computer-based workflows, and execution of complex objectives over extended sessions. The model can run locally using two Apple M5 Ultra Mac Studio systems with the MLX framework, enabling organizations to process information without relying on hosted inference services. Developers can deploy the model through SGLang, vLLM, TensorRT-LLM, Hugging Face Transformers, llama.cpp, and other supported inference engines. Customization is supported through PyTorch and TorchTitan, allowing organizations to adapt the model to specialized applications and workflows. Muse Spark Open is distributed under the Muse Model License and is available through Hugging Face, major cloud model repositories, and hosted API providers including Together AI, Fireworks AI, and OpenRouter.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

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Integrations

Baseten No 
FLUX1.1 Pro Yes 
GPT-4.1 mini Yes 
GPT-5 mini Yes 
GPT-5 pro Yes 
GPT-5.2 Yes 
GPT-5.4 Yes 
GPT-5.4 nano Yes 
GPT-5.5 Yes 
GPT-5.6 Luna Yes 
GPT-6 Astra Yes 
GPT-6.1 Sol Yes 
Grok 3 Yes 
Grok 4.1 Fast Yes 
Grok 4.3 Yes 
Hugging Face No 
Microsoft Azure Yes 
OpenAI Bel Yes 
OpenRouter No 
Phi-4 Yes 

Integrations

Baseten Yes 
FLUX1.1 Pro No 
GPT-4.1 mini No 
GPT-5 mini No 
GPT-5 pro No 
GPT-5.2 No 
GPT-5.4 No 
GPT-5.4 nano No 
GPT-5.5 No 
GPT-5.6 Luna No 
GPT-6 Astra No 
GPT-6.1 Sol No 
Grok 3 No 
Grok 4.1 Fast No 
Grok 4.3 No 
Hugging Face Yes 
Microsoft Azure No 
OpenAI Bel No 
OpenRouter Yes 
Phi-4 No 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

$0
Model weights are available at no charge under the Muse Model License, which has limited commercial-use terms. Hosted inference providers set their own usage prices.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Microsoft

Founded

1975

Country

United States

Website

azure.microsoft.com/en-us/products/ai-foundry/models/

Vendor Details

Company Name

Meta

Founded

2004

Country

United States

Website

research.meta.ai/blog/muse-spark-open

Product Features

Artificial Intelligence

Chatbot No 
For Healthcare No 
For Sales No 
For eCommerce No 
Image Recognition No 
Machine Learning No 
Multi-Language No 
Natural Language Processing No 
Predictive Analytics No 
Process/Workflow Automation No 
Rules-Based Automation No 
Virtual Personal Assistant (VPA) No 

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