Meta Partners With Apple to Launch Muse Spark Open AI Model
Tech rivals join forces to optimize a new open-weights model for Mac hardware.
1Unprecedented Tech Alliance
Meta and Apple have partnered to launch Muse Spark Open, a new open-weights AI model. Meta engineered the architecture while working directly with Apple to ensure optimal execution on Mac systems. The collaboration marks a rare alliance between two historically divergent tech giants with opposing commercial business models.
2Model Architecture and Specs
The open-weights model features 42 billion active parameters and an expansive one-million-token context window. Meta designed the multimodal system specifically for agentic workflows and complex software engineering tasks. Developers can access and customize the weights publicly on HuggingFace under the terms of Meta's proprietary Muse Model license.
3Rivaling Chinese Open Competitors
Meta claims the release matches or outperforms prominent open-weight models from Chinese developers such as Alibaba's Qwen, Moonshot AI's Kimi K3, and Z.ai's GLM. Meta's chief AI officer Alexandr Wang described Muse Spark Open as the most capable US open-weight model released to date for multi-step reasoning.
4High Hardware Investment Demands
Local deployment requires substantial hardware power to function effectively. Running the full model on Apple silicon requires two M5 Mac Studio Ultra machines linked together, costing $5,499 each. This desktop supercomputer setup demands an initial hardware investment exceeding $10,000 for local corporate or developer installations.
5Prioritizing Local On-Device Execution
New Apple CEO John Ternus emphasized on-device AI as the core strategic motivation behind optimizing the model. Local execution allows enterprise developers to process sensitive data without sending information to third-party cloud servers. This approach can also provide a cost-effective, long-term alternative to ongoing monthly cloud compute subscriptions.
6Apple's Growing Compute Footprint
Apple is securing its footprint in the artificial intelligence sector primarily through high-end silicon rather than proprietary consumer models. Following developer adoption of Mac Minis for tools like OpenClaw in early 2026, Apple has positioned the M5 chip architecture as dedicated hardware for compute-heavy local workflows.
7Overcoming Historic Corporate Friction
The collaboration transcends long-standing business friction between the two tech giants. Apple's 2022 app tracking transparency features previously erased $10 billion from Meta's targeted advertising revenue. Despite opposing views on user privacy and data collection, both companies aligned to advance open models alongside dedicated local consumer hardware.
8Dual AI Development Strategy
The release arrives days after Meta unveiled a closed model targeting proprietary systems from Anthropic and OpenAI. By releasing Muse Spark Open concurrently with closed architectures, Meta is maintaining a dual-track strategy, competing directly across both proprietary enterprise services and open-source developer ecosystems.
Original article: CNET — Meta Partners With Apple to Launch Muse Spark Open AI Model