100% Local · Zero Cloud · Always Private
Mochi

Your Mac's
Private AI Brain

An always-on AI assistant that runs entirely on your Mac.
ChatGPT-level intelligence. Your data never leaves your machine.

Download for Mac
v1.0.0  |  macOS 15+  |  Apple Silicon Only
Introducing Mochi Pro | Join waitlist →
0 Data sent to cloud
60s Setup time
4 Core tools
∞ Free local chats

Always one shortcut away

Press ⌥Space from any app to summon the floating brain.

⌥ option
space
Search chats...
Whats the weather like... in 0 seconds
whats the common th... 4 minutes ago
Smart
Mochi - 100% Private AI For Your Mac
Mochi What can I help you with?
Whats the weather like in NYC today?
Reasoning
Searching the web
Reasoning

Based on the latest forecast, here's the weather in New York City for today, March 19, 2026:

ConditionDetails
WeatherSunny
High10°F
Low-2°F
Rain0 mm
Snow0 cm

It's going to be a sunny day with temperatures around 10°F, which is slightly below the historical average for this time of year. The weather has been cooler than usual this month (averaging -2°F below historical norms), but today looks like the warmest day of the week so far.

Storing memory
Hey there Mochi!
Reasoning
Hey there! How's it going?
Ask Mochi anything |
Zero data collection
Native Apple Silicon
Agentic tools
Works offline
Free forever

The AI privacy problem is real

Every other AI assistant sends your data to the cloud. Mochi doesn't.

Cloud AI Assistants

  • ✗ Send every prompt to remote servers
  • ✗ $20/mo minimum (ChatGPT, Claude)
  • ✗ Need internet to work
  • ✗ Your conversations train their models
  • ✗ Can be censored or shut down
  • ✗ Limited by API rate limits

Mochi

  • ✓ Runs 100% on YOUR Mac
  • ✓ Every feature, free forever
  • ✓ Works offline, on airplanes, anywhere
  • ✓ Your data never leaves your SSD
  • ✓ Uncensored, always available
  • ✓ No rate limits — unlimited usage

Everything you need.
Nothing you don't.

Smart Model Selection

Mochi detects your chip and RAM, then auto-picks the best AI model for your hardware — optimized specifically for Mac. Zero config. It just works.

Native Apple Silicon

Pure Swift and optimized for Apple Silicon. Runs directly on your Metal GPU with zero-copy unified memory. Measurably faster than Electron wrappers.

True Privacy

100% local inference. Zero cloud. Zero tracking. Zero data collection. Your prompts and responses never leave your Mac.

See It Think

Watch Mochi's reasoning process in real-time with collapsible thinking blocks. See how it arrives at answers, not just the answer itself.

Beautiful Code Blocks

Syntax-highlighted code with one-click copy buttons. Full markdown rendering, conversation history, and multi-chat sidebar.

Knows You + Memory

Set your name, occupation, and custom instructions. Mochi remembers facts you tell it across sessions — all stored locally in SQLite.

Always One Shortcut Away

Press ⌥Space from any app to summon the floating chat bar. Ask a question, get an answer, and get back to work.

Web Search

Real-time web search built right in. Mochi finds answers online and fetches top result content — all processed locally on your Mac.

Code Runner

Sandboxed code execution for math, data analysis, and scripting. Three-layer security: static analysis, macOS sandbox, and timeout protection.

Image & File Understanding

Drag-drop or paste images for vision model analysis. Supports 12 image formats and 6 video formats including HEIC, WebP, and MOV.

Document Q&A

Import PDFs, code files, markdown, CSV, JSON, and 21+ file types. Ask questions about your documents with built-in BM25 search.

Agentic Tool Use

Multi-step tool chaining — Mochi can search the web, run code, check memory, and more, all in one response with live activity cards.

Mac-Native Tools

Clipboard read/write, open URLs, system info, location, create reminders and calendar events, search contacts, and capture screenshots.

Text-to-Speech

Read any response aloud with 6 different voice options and adjustable speed. Perfect for multitasking or accessibility.

One Mac. One perfect AI.

Mochi detects your hardware and auto-selects the best AI model — purpose-built to run fast and private on your Mac.

MacBook Air · 8GB
Fast Mode ★
Quick answers · Everyday questions
MacBook Pro · 16GB
Balanced Mode ★
Smarter reasoning · Daily driver
MacBook Pro · 24GB+
Smart Mode ★
Advanced reasoning · Rivals cloud AI
Mac Studio · 48GB+
Frontier Mode ★
GPT-4 class quality · On your desk

All models are purpose-built for Apple Silicon — optimized to run faster on your Mac than any other local AI app. One-click setup.

What will you use Mochi for?

Developers

"Explain this regex." "Write unit tests for this function." "Debug this error." Code assistance that never leaks your proprietary codebase.

Writers & Creators

"Rewrite this paragraph for clarity." "Brainstorm blog post titles." "Help me outline Chapter 3." Your creative work stays yours.

Professionals

"Summarize this contract." "Explain this lab report." "Draft a client email." Handle sensitive documents without worrying about data breaches.

Students

"Explain quantum entanglement simply." "Help me study for my exam." "Check my essay." A private study buddy available 24/7 — even in airplane mode, in the middle of nowhere.

Up and running in 60 seconds

1

Install

Download the .dmg. Drag to Applications. That's it — under 50MB.

→
2

Auto-Setup

Mochi detects your chip and RAM, then downloads the perfect AI model with a progress bar.

→
3

Chat

Press ⌥Space from any app. Ask anything. 100% local, 100% private, 100% free.

How Mochi compares to the competition

Mochi ChatGPT Claude Ollama
100% local inference ✓ ✗ ✗ ✓
Native macOS app ✓ ✗ ✗ ✗
Web search ✓ ✓ ✓ ✗
Code execution ✓ ✓ ✗ ✗
Image & file understanding ✓ ✓ ✓ ✗
Document Q&A ✓ ✓ ✓ ✗
Agentic tool chaining ✓ ✓ ✓ ✗
Mac-native tools ✓ ✗ ✗ ✗
Text-to-speech ✓ ✓ ✗ ✗
Works offline ✓ ✗ ✗ ✓
Persistent memory ✓ ✓ ✗ ✗
Price Free $20/mo $20/mo Free

Everything you need. Free.

All the basic features you use daily are completely free. No subscription traps.

Core Application

$0/forever
  • ✓ Unlimited local chat
  • ✓ Smart model auto-selection
  • ✓ Web search & content fetching
  • ✓ Sandboxed code execution
  • ✓ Image, CSV, and code understanding
  • ✓ Document Q&A (PDFs, Markdown, JSON)
  • ✓ See It Think reasoning blocks
  • ✓ Text-to-Speech / Read Aloud
  • ✓ Mic & Dictation input
  • ✓ Persistent memory & chat history
  • ✓ Works 100% offline (Airplane mode)
Download Free
Coming Later

Power Users

TBD
Future Premium Features
  • We may introduce premium features in the future strictly for power users handling advanced workflows:
  • ★ Deep Research Agents
  • ★ Project-level RAG Knowledgebases
  • ★ Automated Scheduled Jobs

Everything that costs $20/mo on cloud providers — web search, coding, vision, documents — is free forever on Mochi.

Frequently asked questions

How does Mochi run AI locally on my Mac?

Mochi is built from the ground up in Swift for Apple Silicon (M1–M5). It runs AI models purpose-built for your Mac directly on the Metal GPU — meaning it's as fast as physically possible on your hardware. No Python, no Docker, no terminal setup.

What Mac do I need?

Any Apple Silicon Mac (M1 or newer) with at least 8GB of RAM. More RAM = a smarter AI. An 8GB MacBook Air handles everyday questions brilliantly. A 48GB Mac Studio delivers GPT-4 class quality. Mochi auto-detects your hardware and picks the best model for you.

Is it really free?

Yes — all the basic features you use daily are absolutely free, natively on your hardware. Unlimited chat, web search, code execution, document Q&A, image understanding, dictation, and the floating bar — all included. We may introduce premium features in the future specifically tailored for power users, but the core functionality will always remain completely free.

How does it compare to ChatGPT or Claude?

Cloud AI providers cost $20/mo and send your data to corporate servers. Mochi gives you the same core daily features — web search, code execution, vision, document Q&A — 100% free and 100% locally. The tradeoff is that local models are slightly slower and hallucinate slightly more than massive server farms, but the benefit is absolute, uncompromised privacy and the ability to work completely offline (airplane mode).

How is this different from Ollama?

Ollama is a great CLI tool for running models. Mochi is built from the ground up for Apple Silicon — meaning it's significantly faster at inference on the same hardware. On top of the raw performance edge, Mochi adds: web search, sandboxed code execution, document Q&A, image understanding, agentic tool chaining, Mac-native integrations, text-to-speech, a premium native GUI, persistent memory, and zero terminal required. Think of it as "what if ChatGPT ran entirely on your Mac."

Do you collect any data?

No. Mochi has zero telemetry by default. We offer an optional (opt-in, off by default) anonymous usage survey — just aggregate counts like "X users used agents this week" with no user IDs or device identifiers. Your chats, documents, and prompts never leave your SSD.

Are you a developer?

Check out Cider — the power-user version of Mochi with CLI, REST API, MCP server, and agent scripting. Same engine, developer-first interface.

Visit cider.bot →