Your assistant. Your apps. Your machine.
A desktop AI assistant for Windows, macOS, and Linux
One request, end to end: Plexon generates an image, writes a Python script that reads the file, runs it, and shows the output. Click to watch (47 seconds).
Plexon answers questions, writes documents, organizes your files, and does real work inside apps like Slack, Notion, Gmail, and GitHub. Pick a persona and it thinks like a developer, designer, marketer, dietitian, financial analyst, product manager, or writer. It learns how you work as you go, and a built-in marketplace adds thousands more skills, agents, and tools when you want them. Everything runs from your computer, and your data stays on it.
Everyday
- Ask and research. Questions, comparisons, decisions. It searches the web when the answer needs current facts.
- Write and edit. Letters, posts, reports, CVs. It also reads and writes real Word and Excel files.
- Sort out your files. Point it at a folder and it reads, renames, organizes, and summarizes what is inside.
- Talk instead of typing. A hands-free voice conversation in 80+ languages, with local transcription.
At work
- Work like a specialist. Personas switch the AI into your profession, with the right tools pre-activated.
- Reach into your apps. 48 built-in connectors. Turn one on with your own account and the AI reads and acts in it.
- Put it on a schedule. Any job can repeat: a Monday-morning report, an inbox summary every evening.
- Build software. The original Plexon: write, review, debug, and ship with five modes and parallel agents.
Each persona swaps in its own server-hosted system prompt, so the AI genuinely thinks like that role, and pre-activates the agents, skills, plugins, and tools that role needs. Build your own with an AI-assisted wizard.
| Persona | What it brings |
|---|---|
| Software Developer | Correctness first, minimal diffs, git safety by default |
| Writer | Voice first, show-don't-tell, aggressive fact-checking |
| Designer | Clarity over cleverness, accessibility non-negotiable |
| Marketer | Positioning first, one audience per piece, measure what matters |
| Dietitian | Evidence over trend, whole-diet patterns, individualisation |
| Financial Analyst | Conservative assumptions, sensitivity over point estimates |
| Product Manager | Problem before solution, outcomes over outputs |
Branded, pre-built integrations you turn on once with your own account, so the AI can work inside the software you already use: post to Slack, reply to mail, update your store, file issues, edit DNS. Sign-in matches each app (a browser sign-in, a key you paste, a server URL, or a one-time QR scan for personal WhatsApp), credentials are encrypted and stay on your machine, and activation is per workspace.
- Messaging: Slack, Discord, Telegram, WhatsApp, Twilio, Instagram, X (Twitter), Unipile
- Productivity: Notion, Google Drive Suite, Google Workspace, Microsoft 365, Todoist, Asana, Trello, Dropbox, WordPress
- Project tracking: Linear, Atlassian (Jira & Confluence)
- CRM & support: Salesforce, HubSpot, Zendesk, Intercom
- Developer & cloud: GitHub, Vercel, Netlify, Cloudflare, Docker, Supabase
- Search: Brave Search, Perplexity, Exa
- Automation: n8n, Zapier, Pipedream, Make
- Data & commerce: Airtable, Database (PostgreSQL, MySQL, MariaDB, SQL Server, SQLite), Stripe, Shopify Dev, WooCommerce
- And more: GoDaddy, Figma, Meta Ads, Spotify, Reddit, Higgsfield, Playwright
Every connector has its own page describing what it can do, example prompts, and how sign-in works: plexon.ai/features/app-connectors.
| Feature | What it does |
|---|---|
| Five AI modes | Code, Plan, Ask, Auto, and Orchestrator, each built for a different kind of work |
| Self-improving skills | A curator agent reviews each session and grows the skill library, so the AI gets smarter the more you use it |
| Schedule | Run any sub-agent on a cron expression or simple interval, with OS notifications and a unified result inbox |
| Unified marketplace | 7,100+ skills, agents, plugins, personas, and tools in one browse-and-install dialog. Shareable .plxm files install with a double-click |
| Marketplace developer mode | Build and publish your own marketplace from inside the app |
| 156 agents | Specialists across 8 professional domains; author your own from chat |
| 200+ skills | Reusable instructions for standards, workflows, and domain knowledge |
| 14 bundled plugins | From office authoring and database toolkits to graph-aware code review |
| Orchestrator & parallel agents | Complex tasks split across concurrent sub-agents; fan one prompt across isolated git worktrees |
| Team coordination | Persistent multi-agent teams with mailboxes and shared memory |
| Browser & desktop automation | Playwright-driven browsing (optionally with your real Chrome profile) plus cross-platform mouse, keyboard, and window control |
| Embedded browser | Point at any element on your local dev site and the AI gets the exact selector and screenshot |
| Voice | Continuous hands-free conversation: local Whisper transcription, 400+ neural voices in 80+ languages |
| Word & Excel in chat | Read, create, and edit .docx and .xlsx files without Office installed |
| Dynamic UI widgets | Responses render as interactive cards, tables, timelines, and forms instead of walls of text |
| Session sharing | Export any session as an encrypted .plexshare file; recipients import it with a double-click |
| Telegram bot | Chat with your Plexon from any device |
| API connections | Turn any HTTP API into AI-callable tools, by OpenAPI import or by hand |
| AutoDream memory | Background consolidation keeps the AI's memory deduplicated and current |
The full list lives at plexon.ai/features.
The Plexon model. The Plexon Provider is the one-subscription path: sign in and you get Plexon 1.0 for chat and coding (1M-token context), Plexon 1.0 Image, and Plexon 1.0 Video, with automatic model routing, key management, and rate-limit recovery handled for you.
Bring your own provider. Plexon is also compatible with the current flagship models through your own API keys:
| Provider | Models include |
|---|---|
| Anthropic | Claude Fable 5, Claude Opus 4.8, Claude Sonnet 4.6 |
| OpenAI | GPT-5.4, GPT-5.3, Codex models |
| Gemini 3.1 Pro, Gemini 3 Flash | |
| Moonshot | Kimi K2.6, Kimi for Coding |
| MiniMax | MiniMax M3, Hailuo video models |
| Qwen | Qwen3 Coder family |
| Z-AI | GLM 5, CogView 4 image, CogVideoX 3 video |
| OpenRouter | 100+ models from every major lab |
| Claude Desktop | Claude Fable 5, Opus 4.8, and Sonnet through your local app, no API key |
The model catalog ships from this repository (catalog/), so new models reach the app without an update. Premium adds Custom Providers: any OpenAI-compatible or Anthropic-compatible endpoint, including local models via Ollama, LM Studio, or vLLM.
- Your files and credentials stay on your machine; connector secrets are encrypted at rest
- The server is stateless: it processes each request and immediately discards everything, with zero storage, logging, or retention
- AES-256-GCM encryption for local session data
- Approval prompts for shell commands, browser launches, and connector installs
Details: plexon.ai/security.
| Platform | Architectures |
|---|---|
| Windows | x64, ARM64 |
| macOS | Intel (x64), Apple Silicon (ARM64) |
| Linux | x64, ARM64 |
- Download the latest release from Releases or plexon.ai/download
- Install and launch
- Sign in with a Plexon plan, or paste your own provider API key
- Pick a persona, turn on the connectors you use, and ask
Plans: Pro at $39/mo, Premium at $89/mo (pricing). Every provider also works with your own API key.
This repository hosts issue tracking, public releases, and the public model catalog (catalog/, the provider and model definitions the app syncs from). The application source is maintained in a private repository.
- Report bugs or request features via Issues
- Website: plexon.ai
- Download: plexon.ai/download
- Features: plexon.ai/features
- Community: plexon.ai/community
- Changelog: plexon.ai/changelog
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