Privacy-First AI Assistant — Your Data Never Leaves Your PC
AI that works for you — without sending your documents, audio or notes to the cloud.
Most AI Tools Store Your Data. CFAI Does Not.
When you upload a document to ChatGPT, paste text into Notion AI, or use Otter.ai to transcribe your meeting, that content travels to external cloud servers. It is processed on infrastructure you do not control, stored according to terms of service you may not have read in full, and retained for periods that vary by provider. For professionals handling confidential business information, legal documents, medical data, or client communications, this is not a theoretical risk — it is a compliance exposure.
CFAI is architected differently from the ground up. Documents you add are indexed locally on your Windows PC using FAISS — a high-performance vector search library that runs entirely in-process. Audio from your meetings and calls is transcribed using Faster Whisper, a locally-executed model. Spellcheck runs as a local binary. OCR is performed on-device. No full document ever leaves your machine. When you ask a question, CFAI retrieves the relevant passage locally and sends only that passage plus your question to the LLM of your choice — which can itself be a local model via Ollama or LM Studio.
The result is a privacy profile that no cloud-first AI tool can match. Your documents are not uploaded. Your audio is not transmitted. Your conversation history is not stored on a server. For lawyers, doctors, HR professionals, finance teams, and executives working with sensitive information, CFAI provides AI productivity without the exposure that comes with every other major AI assistant.
Privacy-First AI Tools — What Actually Stays Local
| Tool | Local Processing | No Bot | Speaker ID | Real-time Translation | Cognitive Map | Price |
|---|---|---|---|---|---|---|
| CFAI ★ Recommended | ✅ | ✅ | ✅ | ✅ | ✅ | Free trial / From €7.99/mo |
| ChatGPT | ❌ | ✅ | ❌ | ❌ | ❌ | Free / Plus $20/mo |
| Notion AI | ❌ | ✅ | ❌ | ❌ | ❌ | $10/mo add-on |
| PrivateGPT | ✅ | ✅ | ❌ | ❌ | ❌ | Free (self-hosted, CLI only) |
| Otter.ai | ❌ | ❌ | ✅ | ❌ | ❌ | Free tier / Pro $16.99/mo |
The Privacy Problem With Most AI Productivity Tools
Lawyers reviewing contracts, doctors discussing patient cases, executives working on unreleased financial data, HR teams handling personnel files — all of these professionals need AI productivity tools, and none of them can safely use the major cloud-based AI assistants without careful legal review.
The core issue is architectural: tools like ChatGPT, Notion AI, Otter.ai, and Fireflies are built around centralized cloud processing. Your input — whether a typed message, a document upload, or a meeting recording — goes to their servers. It is processed there, and in many cases retained there. This creates data processor relationships under GDPR that require Data Processing Agreements, compliance audits, and ongoing due diligence.
CFAI was built for this exact problem. By keeping document indexing, audio transcription, OCR, and spellcheck entirely local, CFAI eliminates the upstream data transmission that creates compliance exposure. For professionals who need AI but cannot accept the privacy tradeoffs of cloud tools, CFAI is the only production-ready solution available today.
Why CFAI Is the Only Truly Privacy-First AI Assistant
Local Document Indexing
Documents are indexed on your PC using FAISS. No full document is ever transmitted — only the retrieved passage relevant to your question.
Local Audio Transcription
Faster Whisper runs entirely on your device. Your meeting audio, call recordings, and voice notes are never uploaded to any server.
Cognitive Map On-Device
CFAI's real-time semantic meeting visualization runs locally. Your conversation structure is analyzed on your PC — not in the cloud.
Local Spellcheck & OCR
Spellcheck uses a local binary. OCR is performed on-device. No text you correct or extract from screenshots ever leaves your machine.
Windows Native, No SaaS
CFAI is a desktop application — not a web service. There is no cloud backend storing your files. Your data lives where you put it: your PC.
RAG Without Cloud Upload
Query your PDFs and documents using AI without uploading them. Only the retrieved passage plus your question is transmitted — never the full file.
No Conversation Storage
Your Q&A sessions are not logged or stored on any external server. Conversations stay on your device and are never used to train models.
Free to Try
Start with the free trial — no credit card required. Full access to privacy-first AI features before you commit to a plan.
How to Use CFAI as a Privacy-First AI Assistant
Install CFAI on Windows
Download CFAI from cfai.io. No cloud account required. No data is collected during installation. Runs on Windows 10/11.
Add Your Documents Locally
Drop your PDFs, Word files, or text documents into CFAI. They are indexed locally using FAISS — nothing is uploaded to any external service.
Ask Questions During Work or Meetings
Ask CFAI questions about your documents or your ongoing meeting. Relevant passages are retrieved locally. Only the passage and your question are sent to your chosen LLM.
Get Answers With Full Privacy
Receive AI-powered answers, meeting summaries, and document insights — with the confidence that your full documents and audio never left your PC.
Frequently Asked Questions
Does CFAI send my documents to the cloud?
No. CFAI indexes your documents locally using FAISS on your Windows PC. When you ask a question, only the retrieved passage relevant to your query is transmitted — not the full document. If you use a local LLM via Ollama or LM Studio, nothing at all leaves your device.
Is CFAI GDPR compliant?
CFAI's architecture is designed to minimize data transmission. Documents are indexed locally, audio is transcribed locally, and conversation history is not stored on external servers. While CFAI is not a legal compliance certification, its local-first design means you are not sending personal data to third-party cloud services — which significantly reduces GDPR exposure compared to cloud-based AI tools.
Does CFAI store conversation history on a server?
No. Your Q&A sessions, meeting transcripts, and document queries are stored locally on your device. CFAI does not maintain a cloud database of your conversations or use your interactions to train any AI model.
What AI model does CFAI use?
CFAI is model-agnostic. It works with any LLM you connect — local models via Ollama or LM Studio (fully offline, zero transmission), or cloud APIs like OpenAI or Anthropic (where only the retrieved passage is sent). For maximum privacy, use CFAI with a local LLM.
Is there a fully offline, privacy-first AI productivity tool?
Yes — CFAI configured with a local LLM (via Ollama or LM Studio) runs entirely offline. Transcription uses Faster Whisper locally, document indexing uses FAISS locally, and inference runs on your GPU/CPU. Nothing leaves your device. This is the highest privacy configuration available in any AI productivity tool.
Try the Privacy-First AI Assistant
Download CFAI free and start using AI on your documents and meetings — without sending your data to the cloud. Plans from €7.99/month.