Introduction

The RunAnywhere Flutter SDK runs language, speech, and vision models on the device. Prompts, audio, and images stay on the phone, and everything keeps working offline.

import 'package:runanywhere/runanywhere.dart';

await RunAnywhere.initialize(apiKey: '', baseUrl: '');

final result = await RunAnywhere.llm.generate('Name three colours');
print(result.text);

Requirements

Item	Minimum
Dart SDK	`>=3.12.0 <4.0.0`
iOS	17.5
Android	API 24, arm64

Run on a physical device. The Android emulator has no arm64 native libraries for these backends, and Apple MLX only executes on physical iOS hardware.

Packages

Package	Published version	Role
`runanywhere`	0.20.24	Core SDK, FFI bridge, model registry, event bus. Required.
`runanywhere_llamacpp`	0.20.24	LLM and VLM on GGUF via llama.cpp
`runanywhere_onnx`	0.20.24	STT, TTS, VAD, embeddings via ONNX and Sherpa
`runanywhere_mlx`	0.20.24	Apple MLX, physical iOS devices
`runanywhere_qhexrt`	0.20.19	Qualcomm Hexagon NPU, Android only

runanywhere_qhexrt publishes at 0.20.19 on pub.dev. Four of the five move together; QHexRT does not.

The namespaces

Every capability is a static getter on RunAnywhere.

Namespace	Type	What it does
`llm`	`LlmApi`	Text generation, streaming, tools, structured output
`vlm`	`VlmApi`	Image plus prompt
`stt`	`SttApi`	Speech to text
`tts`	`TtsApi`	Text to speech
`vad`	`VadApi`	Voice activity detection
`voice`	`VoiceApi`	A full spoken conversation
`rag`	`RagApi`	Retrieval over your own documents
`models`	`ModelsApi`	Registry, download, load, unload
`embeddings`	`EmbeddingsApi`	Text vectors
`rerank`	`RerankApi`	Reorder results against a query
`lora`	`LoraApi`	Adapters on the loaded base model
`images`	`ImagesApi`	Image generation
`diarization`	`DiarizationApi`	Who spoke when
`segmentation`	`SegmentationApi`	Labelled regions in an image
`cua`	`RunAnywhereCUA`	Computer-use prompt and parse scaffold
`solutions`	`RunAnywhereSolutions`	YAML-defined pipelines
`hybrid`	`RunAnywhereHybrid`	Local and cloud routing

hybrid exists only on Flutter. Streaming is Stream<T>; everything else returns a Future.

Differences worth knowing up front

Dart has no method overloading, so Flutter’s surface diverges from the other SDKs in ways that break copied code:

Four generation methods, not two: generate, generateChat, generateStream, generateChatStream.
generateStructured takes the schema as a String, not an object.
ingestAll(documents) for a list, where the others overload ingest.
RunAnywhere.deviceId throws before initialize().
No AudioInput.file and no ImageInput.rawRgba.

Where to go next

Installation

pubspec and platform setup

Quick Start

A working chat

Text generation

Prompts and options

Voice agent

Speech in, speech out

Getting Started

Swift SDK

Kotlin SDK

React Native SDK

Flutter SDK

Web SDK

Electron SDK

Vibe Coding

Requirements

Packages

The namespaces

Differences worth knowing up front

Where to go next

Installation

Quick Start

Text generation

Voice agent

​Requirements

​Packages

​The namespaces

​Differences worth knowing up front

​Where to go next

Installation

Quick Start

Text generation

Voice agent

Requirements

Packages

The namespaces

Differences worth knowing up front

Where to go next