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Description

Grok 4.1, developed by Elon Musk’s xAI, represents a major step forward in multimodal artificial intelligence. Built on the Colossus supercomputer, it supports input from text, images, and soon video—offering a more complete understanding of real-world data. This version significantly improves reasoning precision, enabling Grok to solve complex problems in science, engineering, and language with remarkable clarity. Developers and researchers can leverage Grok 4.1’s advanced APIs to perform deep contextual analysis, creative generation, and data-driven research. Its refined architecture allows it to outperform leading models in visual problem-solving and structured reasoning benchmarks. xAI has also strengthened the model’s moderation framework, addressing bias and ensuring more balanced responses. With its multimodal flexibility and intelligent output control, Grok 4.1 bridges the gap between analytical computation and human intuition. It’s a model designed not just to answer questions, but to understand and reason through them.

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 Yes 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

Integrations

OpenRouter Yes 
C Yes 
C# Yes 
EaseMate AI Yes 
F# Yes 
FastRouter Yes 
Fireworks AI No 
Grok 4.1 Thinking Yes 
Grok Imagine Yes 
HTML Yes 
Hugging Face No 
Kotlin Yes 
Microsoft Foundry Models Yes 
Modal No 
Nebius No 
Ruby Yes 
Scala Yes 
SuperGrok Yes 
TypeScript Yes 
X (Twitter) Yes 

Integrations

OpenRouter Yes 
C No 
C# No 
EaseMate AI No 
F# No 
FastRouter No 
Fireworks AI Yes 
Grok 4.1 Thinking No 
Grok Imagine No 
HTML No 
Hugging Face Yes 
Kotlin No 
Microsoft Foundry Models No 
Modal Yes 
Nebius Yes 
Ruby No 
Scala No 
SuperGrok No 
TypeScript No 
X (Twitter) 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 Yes 
iPad App Yes 
Android App Yes 
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

SpaceXSI

Founded

2023

Country

United States

Website

grok.com

Vendor Details

Company Name

Meta

Founded

2004

Country

United States

Website

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

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