LatentChat - Assistant LLM

Private and Local AI Chatbot

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iOS

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Experience the power of LLMs with LatentChat, a fully offline, on-device private AI chatbot.
LatentChat is ready to use right out of the box—no additional downloads required. Ask questions, brainstorm, transcribe speech, add your own files and create with your customized chat companion from anywhere, even without an internet connection.
You can also use your own local LLMs by selecting your preferred open-source language models stored on your device. Depending on your needs, some models may perform better than others.
Too many nonsensical responses? With a local RAG integrated in the app, you can reduce hallucinations and give the model all the knowledge that you want.
With RAG (Retrieval-Augmented Generation) you can easily summarize and retrieve your documents together with your LLM. Simply upload your text files, while you chat, LatentChat will look for relevant information from your custom knowledge and pass it to the language model. This means it can reference what you’ve added, reducing hallucinations and providing answers that are more specific.
Use System Prompts to personalize your conversations by providing instructions that can modify the behavior or personality of the AI. Each chat is associated with a specific system prompt, and you can save your favorites for easier reuse.
Features:
== Ready to use, no additional download required
== Completely offline and on-device processing
== Your prompts remain private and are ...

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Try different generative language models with LatentChat, a fully offline, on-device private AI chatbot.
LatentChat is ready to use right out of the box. Ask questions, brainstorm, reason, transcribe speech, add your own models and create with your customized chat companion from anywhere, even without an internet connection.

- Local chat
Try models like Llama, Gemma, Qwen and Mistral or use your own local LLMs by selecting your preferred open-source language models stored on your device. Reasoning models are supported, too.
- Remote chat
LatentChat can be used as a client to connect to any OpenAI-compatible and Anthropic-compatible API endpoint, whether it is running on your own private servers like Ollama, LM Studio or on cloud services OpenRouter (Bring your own API Key).
- Retrieval-Augmented Generation (RAG)
Create your knowledge center from text or files (PDF, TXT, JSON, HTML) and retrieve your documents while you chat to ask related questions or summarize.
A RAG system can also help the model reduce hallucinations by referencing the knowledge you added.
- Vision capabilities
Try multimodal models like Qwen 3 VL, InternVL and LFM2.5 with vision capabilities, to analyze images or extract text.
- Transcription and Voice (STT and TTS)
Transcribe recordings or audio files with Whisper and read messages aloud with different voice styles. Multiple languages are supported.
- System Prompts
Use System Prompts to personalize your conversations by providing custom instructions that can modify the behavior or personality of the AI.

Features:
== Completely offline and on-device processing
== Your prompts remain private and are never shared
== Model catalog: a selection of LLMs downloadable from HuggingFace
== Bring your AI models: download and choose your favorite LLMs (.gguf)
== Connect to servers like Ollama or LM Studio for more powerful models
== Local RAG: Integrate your own knowledge from text
== Vision capabilities with multimodal models to process images
== Text to speech: read messages aloud (English, Spanish, French, Portuguese)
== Multilingual transcription (STT) using Whisper
== Customize system instructions and parameters
== Shortcuts integration
== No subscriptions, buy once and get any update
Read the terms and privacy policy before using this app, available on latentlake.com/termspolicy/chat-policy-terms