+
+

Related Products

  • LTX
    182 Ratings
    Visit Website
  • Runpod
    230 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • IONOS Cloud GPU Servers
    45,340 Ratings
    Visit Website
  • Nexo
    18,780 Ratings
    Visit Website
  • Compute with Hivenet
    4 Ratings
    Visit Website
  • AnalyticsCreator
    46 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    1,161 Ratings
    Visit Website
  • Fraud.net
    56 Ratings
    Visit Website
  • Iru
    1,389 Ratings
    Visit Website

About

Muse Spark Open is an open-weight, natively multimodal language model for developers and organizations building AI applications, coding systems, and agentic workflows. The released model has 816 billion total parameters, 42 billion active parameters, and a 1-million-token context window. Teams can download the model weights, run inference through supported engines such as vLLM, SGLang, TensorRT-LLM, Hugging Face Transformers, Apple MLX, llama.cpp, or Unsloth, and customize the model using PyTorch. It supports long-context reasoning, software engineering, coding, tool use, and multimodal inputs. Deployment options include cloud inference through listed API providers or self-hosting on compatible GPU systems; Meta documents a desktop setup using two Apple M5 Ultra Mac Studio computers. The model is released under the Muse Model License with limited commercial terms.

About

Sup AI is a multi-LLM platform that merges outputs from several top large language models, such as GPT, Claude, Llama, and more, to generate richer, more accurate, and better-validated answers than any single model could provide. It applies real-time “logprob confidence scoring,” analyzing each token’s probability to detect uncertainty or hallucination; when a model’s confidence falls below a threshold, the response is halted, helping ensure that delivered answers remain high-quality and trustworthy. Sup’s “multi-model fusion” then compares, contrasts, and consolidates outputs from different models, cross-verifying and synthesizing the best parts into a final result. Sup also supports “multimodal RAG” (retrieval-augmented generation) to incorporate external data (text, PDFs, images) into context-aware responses, giving the AI access to factual sources and helping it “never forget” relevant information.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI developers, machine learning engineers, software engineers, AI researchers, enterprise development teams, and organizations seeking customizable open-weight multimodal models for local inference, autonomous agents, complex coding, and long-context AI applications

Audience

Researchers, knowledge workers, teams and professionals wanting a tool offering high-accuracy AI-assisted content generation, reasoning or research

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$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 Version Supported
Free Trial Not Supported

Pricing

$20 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Pros & Cons from Real Users

Pros

  • Meta finally opened up a genuinely frontier-level Muse model. The 1M-token context window and 42B active parameters make it strong enough for large repos, long agent sessions, multimodal work, and complex coding without feeling like a stripped-down open model. The local deployment story is also a huge deal. Being able to run something this capable on two M5 Ultra Mac Studios is impressive, especially for teams that want more control over data, infrastructure, and customization. I also like how much of the stack is open around it. Muse Spark Open works with MLX, vLLM, SGLang, TensorRT-LLM, Transformers, llama.cpp, and Unsloth, and Meta is making the weights available through Hugging Face, SageMaker, Google Cloud Model Garden, and Microsoft Foundry.

Cons

  • Even though it is technically desktop-capable, needing two M5 Ultra Mac Studios for the full local experience is still a serious setup, so most developers will probably use hosted inference instead.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Meta
Founded: 2004
United States
research.meta.ai/blog/muse-spark-open

Company Information

Sup AI
United States
sup.ai/

Alternatives

Alternatives

GPT-6.1 Sol

GPT-6.1 Sol

OpenAI
Inkling

Inkling

Thinking Machines Lab
Voyage AI

Voyage AI

MongoDB

Categories

Categories

AI Tools Supported

Integrations

ChatGPT Not Supported
Claude Fable 5.1 Not Supported
Claude Opus 4.5 Not Supported
Claude Opus 5 Not Supported
Claude Sonnet 4.6 Not Supported
Claude Sonnet 5.5 Not Supported
GLM-4.5V-Flash Not Supported
GLM-4.6V Not Supported
GLM-5.2 Not Supported
GLM-5.3 Not Supported
Gemini 3 Pro Not Supported
Gemini 3 Pro Image Not Supported
Gemini 3.1 Flash-Lite Not Supported
Gemini 3.1 Pro Not Supported
Groq Supported
Hugging Face Supported
Modal Supported
Qwen3-Max Not Supported
vLLM Supported

Integrations

ChatGPT Supported
Claude Fable 5.1 Supported
Claude Opus 4.5 Supported
Claude Opus 5 Supported
Claude Sonnet 4.6 Supported
Claude Sonnet 5.5 Supported
GLM-4.5V-Flash Supported
GLM-4.6V Supported
GLM-5.2 Supported
GLM-5.3 Supported
Gemini 3 Pro Supported
Gemini 3 Pro Image Supported
Gemini 3.1 Flash-Lite Supported
Gemini 3.1 Pro Supported
Groq Not Supported
Hugging Face Not Supported
Modal Not Supported
Qwen3-Max Supported
vLLM Not Supported
Claim Muse Spark Open and update features and information
Claim Muse Spark Open and update features and information
Claim Sup AI and update features and information
Claim Sup AI and update features and information