Private AI Models vs Chat LLM

Chat with an AI that lives on your phone, not in the cloud. Private AI is an offline AI chat app: open models like Qwen, Gemma and GLM run entirely on your phone — no server, no account, and after a one-time model download no internet at all. YOUR AI, YOUR DEVICE Cloud chatbots send every word you type to a data center. Private AI computes the answer on your phone's own chip: your chats, your photos and the models themselves stay with you. Uninstall it and everything goes with it. WORKS COMPLETELY OFFLINE Download a model once, then chat anywhere: • On flights, subways and trips abroad • In dead zones and on unreliable connections • Whenever you want answers that stay private Switch on airplane mode if you like — the app won't notice. THE LATEST OPEN MODELS, PHONE-SIZED • Qwen 3.5 (0.8B, 4B, 9B) — fast, smart and multilingual • Google Gemma 4 (E2B, E4B) — mobile-first quality, 140+ languages • GLM 4.6V Flash — flagship-class vision for high-end phones • Ministral 3 — compact, with a 256k context window • Bring your own: load any GGUF model by URL (Hugging Face links work) Models are 0.8–6 GB downloads. A "Fits your device" badge reads your phone's RAM so you know what will run well before you download, the catalog is searchable and filterable, and interrupted downloads resume where they stopped. BENCHMARK IT ON YOUR OWN PHONE Run the built-in benchmark on any downloaded model to see exactly how fast it loads and generates on your hardware — tokens per second, GPU or CPU — and pick the model that fits. CHAT WITH YOUR DOCUMENTS Attach a PDF, text or Markdown file to any chat and ask about it: the text is extracted and searched on your phone, the model answers from the matching passages and tells you which ones it used. Contracts, papers, manuals, notes: the files are never uploaded. UNDERSTANDS IMAGES Every model in the catalog supports vision. Add the optional image-support file, then snap a photo or pick one from your gallery: read documents, translate signs, decode menus, describe scenes. WATCH IT THINK Turn on thinking mode and reasoning models show their step-by-step working in a collapsible panel above the answer — great for math, code and anything worth double-checking. ASSISTANTS Start a chat with a ready-made assistant: Tutor, Writing Coach, Email Helper, Translator, Code Helper, Summarizer, Chef or Travel Planner, each with its own instructions and one-tap starters. An offline translator for your next trip, no signal needed. A REAL CHAT APP • Markdown that renders: code blocks with one-tap copy, tables and lists • Streaming answers with a live tokens-per-second readout • Switch models mid-conversation from the chat header • A system prompt per chat, plus Creative / Balanced / Precise / Thinking presets • Edit, regenerate, copy, select text — or have any answer read aloud (on-device TTS) • Search your chats, pin favorites, light and dark themes • Back up every chat and setting to a single JSON file, and restore anywhere PRIVATE BY DESIGN • Conversations and photos are processed on your device, never in the cloud • No account, no sign-up, no server • GPU-accelerated by llama.cpp — Metal on iPhone, OpenCL on Snapdragon Adreno PRIVATE AI PRO Free to use, with ads that never interrupt an answer (offline, none load). Pro removes all ads and adds your own custom assistants and accent colors. Choose monthly, yearly (with a free trial for new subscribers) or a one-time lifetime unlock. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://llm.chinesepowered.com/privacy.html Formerly Personal LLM: same app, new name. Your questions are yours. Keep them that way.

Chat LLM is a private AI chat app for iPhone and iPad. No account required. Use on-device AI offline, start chatting free with cloud AI, or connect your own provider keys for more control. On-device AI for private offline chat The on-device Llama model is an optional one-tap download from the model picker. The app installs under 10 MB without it. Free cloud chat, no account needed Cloud LLM is powered by Groq and works out of the box. No signup, no key required. 300+ models via OpenRouter Connect your OpenRouter key and chat with over 300 models. A web search toggle lets any OpenRouter model pull live information — current events, prices, weather — charged to your own OpenRouter credits. Your computer's models with LM Studio Run open models in LM Studio on any Mac, Windows or Linux machine and use them from Chat LLM over a private Tailscale connection. Browse, load and unload models from the app, and connect LM Studio's MCP tool servers. No per-message credits, no content restrictions. Voice chat with Gemini Live and Grok Have natural real-time voice conversations through two backends. Google Gemini Live brings a choice of voices, Google Search grounding, and photo sharing mid-conversation. xAI Grok adds a large, auto-updated voice library — use an API key or simply sign in with your xAI account. Each backend has its own system prompt and live tuning controls. Image and video generation Generate images and videos inside a conversation with OpenRouter and Grok media models. Prices show on the model cards before you generate, and generation keeps running in the background — you'll get a notification when your result lands, even if you've left the app. Reader — listen to documents and text Reader turns Chat LLM into an audiobook player for your own content. Import a .pdf, .epub, .docx or .txt file, paste text, or share any webpage or document from the iOS share sheet and Reader speaks it paragraph by paragraph. Tap any paragraph to jump to it; your position is saved automatically. Choose your voice per document from five providers: OpenRouter Kokoro for pennies, MiniMax for high quality at great value, ElevenLabs for expressive narration with your own cloned voices, Fish Audio for a vast library of community and custom voices, or xAI Grok — just sign in with your Grok account. Account voices sync automatically and can be searched and favourited. Export any document to a single audio file on your device. Pause an export any time and resume from the exact sentence — generated audio is never paid for twice. Exported files play offline with no credits used, can be shared or found in Files under Chat LLM, and keep sentence highlighting and tap-to-seek. iCloud sync Your settings, system prompts, conversations, and Reader library back up to your own private iCloud automatically and restore across your devices and after a reinstall. If you're signed out of iCloud, everything still works and stays on your device. Other features Image and document uploads in text chat (supported models) Independent system prompts per provider Advanced generation controls: temperature, top-p, and more Conversation history with model identification Vision, reasoning, and parameter-count tags on OpenRouter models Privacy Chat LLM does not require a user account. API keys are stored securely in the iOS Keychain. Your conversations and Reader library sync through your own private iCloud, tied to your Apple ID — they are never stored on our servers, and we have no access to them. When you use a third-party provider, your prompts and inputs are sent to that provider to generate a response; their own privacy and retention policies apply. Free to download. No subscription, no paywall. Optional provider usage is billed directly by the provider you choose. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://ferrraridave-coder.github.io/chat-llm-support/privacy-policy.html