Muse Spark Open Reviews & Ratings

Muse Spark Open

5.0 out of 5 stars

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What is Muse Spark Open?

Muse Spark Open is a large-scale open-weight artificial intelligence model developed by Meta for multimodal understanding, software engineering, autonomous agents, and long-horizon reasoning. Released in October 2026, the model provides downloadable weights that allow developers to deploy and customize it outside Meta's hosted AI services. It uses a mixture-of-experts architecture containing 816 billion total parameters, with approximately 42 billion parameters activated during inference. Its one-million-token context window supports processing extensive documents, large software repositories, and lengthy sequences of instructions and interactions. The model is designed for complex coding workflows involving source code analysis, debugging, feature implementation, application development, and software testing. Its multimodal capabilities enable AI agents to interpret visual information and combine that understanding with reasoning and automated computer interactions. Meta demonstrated the model performing local software development tasks and controlling DaVinci Resolve to analyze video footage and prepare edited content. Muse Spark Open supports on-device deployment using two Apple M5 Ultra Mac Studio computers running the MLX framework, with additional compatibility across AMD, Intel, and NVIDIA hardware. Supported inference frameworks include SGLang, vLLM, TensorRT-LLM, Hugging Face Transformers, llama.cpp, and Unsloth, with optimized GPU kernels for improved processing performance. Developers can customize the model using PyTorch and TorchTitan to adapt its behavior to specialized tasks, organizational requirements, and application workflows. Muse Spark Open is distributed under the Muse Model License with limited commercial terms and is available through Hugging Face, Amazon SageMaker AI, Google Cloud Model Garden, Microsoft Foundry Models, and several hosted API providers.

What is Big Pickle?

Big Pickle is an AI model available through OpenCode Zen, a provider that curates and validates models for coding-agent use cases. The model is listed under the OpenCode provider and can be accessed through an OpenAI-compatible completions API. Big Pickle supports text input and reasoning, making it suitable for developer workflows that require analysis, planning, code understanding, and multi-step execution. It is also described as supporting function calling, which helps developers connect model output with tools, agents, scripts, and automated workflows. Big Pickle’s large context window makes it useful for working with extended prompts, larger project files, documentation, codebases, and complex technical tasks. The model appears in OpenCode Zen’s model list alongside other coding and reasoning models, positioning it as part of a developer-focused model ecosystem. Third-party model directories list Big Pickle with free input and output token pricing, making it appealing for experimentation and cost-sensitive workloads. Developers can use Big Pickle for code assistance, refactoring, debugging, technical research, task decomposition, command-line workflows, and AI agent orchestration. Because some listings differ on exact output-token limits, teams should verify the current model configuration directly in their OpenCode environment before designing production workloads around a fixed limit. Big Pickle is especially useful for developers who want to test long-context AI coding workflows without committing to a more expensive model tier. Big Pickle helps engineering teams explore AI-assisted development, coding agents, tool calling, and long-context reasoning in a flexible and accessible way.

Media

Media

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Integrations Supported

Baseten
Fireworks AI
Groq
Hugging Face
Modal
Nebius
OpenRouter
Together AI
vLLM

Integrations Supported

OpenCode

API Availability

API Availability

Pricing Information

$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

Pricing Information

Free
Free Version

Supported Platforms

SaaS
Windows
Mac
On-Prem
Linux

Supported Platforms

Windows
Mac
Linux

Customer Service / Support

Not specified

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Meta

Date Founded

2004

Company Location

United States

Company Website

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

Company Facts

Organization Name

OpenCode

Company Website

opencode.ai/

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

Open-Weight AI Models

Not specified

Categories and Features

AI Models

Not specified

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