MLX-TurboQuant-Service: Local Inference Service for Gemma 4 on Apple Silicon

MLX-TurboQuant-Service is a local inference service optimized for Apple Silicon, supporting the Gemma4 model series (including the 26B parameter scale). It provides OpenAI-compatible APIs, streaming output, and quantization acceleration capabilities, allowing Mac users to efficiently run large language models locally while balancing privacy protection, low latency, and full control.

With the development of large models, the demand for local deployment has grown (due to privacy, latency, and control concerns), but the high computational requirements of consumer-grade hardware have become an obstacle. Apple Silicon chips (M1/M2/M3/M4) provide a hardware foundation with their unified memory architecture and neural engine, and the MLX framework is optimized for them. This project aims to provide Mac users with an out-of-the-box local inference service optimized for the Gemma4 series.

1. Local-first architecture: All computations are local, no network dependency, ensuring data privacy;
2. OpenAI-compatible APIs: Supports endpoints like chat completion, text completion, model list, and streaming output, reducing migration costs;
3. Quantization acceleration: TurboQuant technology optimized for Gemma4, balancing speed and accuracy;
4. Streaming response: Returns output word by word in real-time, enhancing user experience;
5. Supervision mode: Supports monitoring and controlling the inference process, suitable for debugging and teaching scenarios.

The project is optimized for Google's Gemma4 model series, especially the 26B parameter version. Through MLX framework optimization and quantization technology, Macs with sufficient memory can run the 26B model; memory-constrained devices support smaller Gemma4 variants. Gemma4 performs well in multiple benchmark tests.

Hardware requirements: Apple Silicon Mac (M1/M2/M3/M4), recommended 32GB+ memory (for 26B model), macOS Sonoma or above. Quick start: Clone the repository → Install dependencies → Download model weights. Client integration: Supports OpenAI official libraries, LangChain/LlamaIndex frameworks, third-party ChatGPT clients, and custom HTTP requests.

1. Privacy-sensitive applications: Processing medical records, business secrets, etc., with data never leaving the local device;
2. Offline environments: Remains available when the network is unstable or offline;
3. Development and testing: Rapid prototyping without consuming cloud API quotas;
4. Cost optimization: Reduces long-term costs for high-frequency call scenarios.

Limitations: Consumer-grade Apple Silicon has limited memory, so ultra-large models (70B+) cannot run; quantization may affect accuracy in high-precision tasks; some OpenAI-specific features are not fully supported. Future directions: Support more model architectures, optimize quantization algorithms, add function calling/multimodal features, and improve cross-platform compatibility.

MLX-TurboQuant-Service fully leverages the hardware advantages of Apple Silicon and MLX framework optimizations to bring the Gemma4 26B large model to consumer-grade Macs. For developers who value privacy, offline capabilities, or cost reduction, it is an open-source project worth trying.