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Nexa SDK

Cross-platform on-device AI model runtime

open sourceverified Aug 24, 2026

Nexa SDK enables running frontier LLMs and multimodal models locally across PC, mobile, IoT, and wearables with automatic hardware acceleration for GPU, NPU, and CPU. It supports Qwen, Gemma, Llama, DeepSeek models with Python/C++ desktop SDKs, Android/iOS mobile SDKs, and Docker for edge deployment. Includes an OpenAI-compatible API server with chat and function calling support.

Nexa SDK abstracts the complexity of deploying AI models across heterogeneous devices by providing a unified runtime that automatically detects and routes workloads to the optimal hardware accelerator. Whether a device has an Apple Neural Engine, Snapdragon NPU, discrete GPU, or only a CPU, the NexaML runtime layer handles backend selection transparently. Developers write inference code once and deploy across PCs, smartphones, IoT devices, and wearables without platform-specific modifications.

The SDK provides day-zero compatibility with frontier open models including Qwen, Gemma, Llama, DeepSeek, and IBM Granite variants. It covers text generation, vision-language understanding, speech-to-text, text-to-speech, and image generation across all supported platforms. The OpenAI-compatible server mode enables serving local models through standard API endpoints, making it possible to use familiar chat interfaces and function-calling patterns without cloud dependencies.

Platform-specific SDKs are available for Python and C++ on desktop and server environments, native Android and iOS for mobile development, and Docker containers for Linux and IoT edge deployments. ARM SIMD kernels ensure efficient inference on resource-constrained devices, while zero-copy computation graphs minimize memory overhead. For organizations building privacy-sensitive applications in healthcare, finance, or enterprise contexts, Nexa SDK provides the infrastructure to keep all data processing on-device while maintaining the quality of modern AI capabilities.

Pricing

100% free and open source under the Apache-2.0 license ($0 software cost). Nexa SDK is an on-device multimodal AI inference framework supporting text, vision, and audio models with hardware acceleration and zero licensing fees.

full pricing breakdown →

Platforms

Python/C++, Android/iOS, Docker, cross-platform

Categories

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Use Cases

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Ollama

Run LLMs locally with one command

Tool for running large language models locally on your machine with a simple CLI interface. Download and run Llama 3, Mistral, Gemma, Phi, Code Llama, and dozens of other open-source models with a single command. Features model management, GPU acceleration (NVIDIA/AMD/Apple Silicon), OpenAI-compatible API server, Modelfile for customization, and multi-model switching. Ideal for offline AI development, privacy-sensitive use cases, and local testing. 120K+ GitHub stars.

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llama.cpp

High-performance local LLM inference in C/C++

llama.cpp is the foundational C/C++ library with 75K+ GitHub stars powering local LLM inference on consumer hardware. Provides optimized CPU and GPU inference for quantized models in GGUF format. Supports LLaMA, Mistral, Phi, Gemma, and most open-weight families. Features 2-8 bit quantization for reduced memory, multi-GPU support, context extension, grammar-constrained output, and an OpenAI-compatible API server. The engine behind Ollama and LM Studio.

Open Source
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RunAnywhere SDK

Cross-platform on-device AI inference SDK

RunAnywhere SDK is a production-ready toolkit for running AI models entirely on-device across iOS, macOS, Android, Web, React Native, and Flutter. It provides a unified C++ core with platform-specific bindings for LLM text generation via llama.cpp, vision-language models, Whisper speech-to-text, Piper text-to-speech, and on-device image generation. All processing stays local with zero cloud dependency, ensuring privacy and low latency for mobile and edge AI applications.

freemium

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FAQ

What is Nexa SDK?

Nexa SDK enables running frontier LLMs and multimodal models locally across PC, mobile, IoT, and wearables with automatic hardware acceleration for GPU, NPU, and CPU. It supports Qwen, Gemma, Llama, DeepSeek models with Python/C++ desktop SDKs, Android/iOS mobile SDKs, and Docker for edge deployment. Includes an OpenAI-compatible API server with chat and function calling support.

Is Nexa SDK free?

Yes — Nexa SDK is open source and free to use. 100% free and open source under the Apache-2.0 license ($0 software cost). Nexa SDK is an on-device multimodal AI inference framework supporting text, vision, and audio models with hardware acceleration and zero licensing fees.

Is Nexa SDK open source?

Yes — Nexa SDK is open source.

Is Nexa SDK still maintained?

Yes — Nexa SDK is active. Its listing was last verified on August 24, 2026.

What are the best Nexa SDK alternatives?

The top editor-verified Nexa SDK alternatives are Ollama, llama.cpp, RunAnywhere SDK.