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On-device local models
Download supported GGUF models and chat directly on your iPhone without a separate server.
3sparks Chat
Run AI your way
On device, local, or cloud
Chat with advanced language models wherever they run. Use private on-device GGUF models, connect to LM Studio or Ollama servers, or tap into OpenAI-compatible APIs such as OpenAI, Mistral, OpenRouter, Gemini, and more. 3sparks Chat is optimized for iOS, iPadOS, VisionOS, and the AI Keyboard extension.
Available on:
Version 3 ready
Everything 3sparks Chat can do
A flexible mobile AI workspace for private local models, connected cloud providers, reusable prompts, documents, and fast writing tools in every app.
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Vision with local and remote models
Chat with images using vision-capable local GGUF models or remote providers that support image input.
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Private memory
Let chats recall useful context from past conversations and saved documents on your device.
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LM Studio, Ollama and more
Connect to LM Studio, Ollama, and other OpenAI-compatible local servers alongside cloud APIs.
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Replies finish in the background
On iOS 26, leave the app mid-reply and come back to a finished answer, with a system indicator tracking it.
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AI keyboard everywhere
Rewrite, summarize, translate, and run saved prompts from Messages, Mail, Notes, and other apps.
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Files and documents
Bring PDFs, documents, and images into your chats so answers can use the material you provide.
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Any Hugging Face GGUF model
Browse the supported catalog or paste any public model ID or URL, then keep downloads moving in the background.
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Sync, sharing, and control
Save chats, use custom instructions, share into the app, and sync between iPhone and iPad with iCloud.
Choose where your AI runs
Run models on your device, connect to LM Studio or Ollama servers, or use the cloud APIs you already trust:
On-device GGUFDownload supported models and run chats privately on your phone
AI Keyboard Extension
Rewrite, summarize, translate, and run your saved prompts without leaving the app where you are typing.
Recent Keyboard Prompts
A collection of prompts optimized for the AI Keyboard Extension included in 3sparks Chat.