> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nexa.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Overview
> Start here to set up and explore the Nexa SDK on Python.
## **Nexa Python SDK**
The NexaAI provides a comprehensive Python API for on-device AI inference across multiple modalities.
It supports Large Language Models (LLM), Vision-Language Models (VLM), text embedding, document reranking, computer vision (OCR), automatic speech recognition (ASR), text-to-speech (TTS), image generation, speaker diarization, key-value cache, sampling configuration, chat templates and error handling.
## **Choose Your Platform**
The NexaAI Python SDK supports multiple platforms with optimized backends. Select your platform for platform-specific setup and examples:
Complete setup guide for macOS with Apple Silicon optimization using MLX backend.
Setup guide for Windows x64 systems with CPU/GPU acceleration.
NPU-optimized guide for Windows ARM64 devices (Snapdragon X Elite).
## **Quick Reference**
General overview and platform selection guide for getting started.
Complete API documentation for all SDK modules and classes.