VAHTOR · AI governance platform and browser extension by Vahtor OyGet your company's
AI under control.
Manage AI tools, policies, risks and training in one place.
ChatGPT
Claude
Gemini
GitHub Copilot
Bing Chat
Perplexity
Midjourney
Jasper
Notion AI
Hugging Face
Stable Diffusion
Grammarly
Canva Magic
SynthesiaWhat detection and blocking actually cover
Both run inside the browser where VAHTOR is installed. A phone app, or a desktop AI app, is not visible to the extension.
Chrome
Edge
Safari
Firefox
Brave
Opera
Detected
The extension reports which AI site is open, including ChatGPT, Copilot, Claude and Gemini, and the time. It runs in Chrome, Edge, Safari, Firefox, Brave, Opera, and the other browsers people use.
Blocked
A PDF, Excel or Office file can be cancelled in the tab before it is sent. Credentials and secrets are flagged on the device. Prompt text is not uploaded.
Outside the extension
Phone apps stay invisible to the extension. Desktop AI apps on Windows are a separate install, VAHTOR Detect. A browser without the extension is not covered.
See AI tools used in the browser
ChatGPT, Copilot, Claude and the rest show up in one inventory when the extension is installed. Approve, restrict or block. Phone apps and desktop AI apps are not in that inventory.
See how AI tool discovery worksChatGPTApprovedClaudeApprovedGeminiReviewPolicy that people actually accept
Publish a company AI policy from a template. Track who accepted the current version. Keep literacy quizzes and pass marks for the whole team.
See how AI policies and approvals workCompany policy
v1.0 · 0 accepted
0% of the team on the latest version
Stop whole files going into AI
Rules can block PDFs, Excel and office files attached to AI tools. Credentials and secrets are flagged on-device. Chat text is not stored.
See how VAHTOR protects company dataWhat is an AI governance platform?
An AI governance platform lets a company manage AI tools, policies, risks and training in one place. With VAHTOR, that means one inventory of the AI tools people use, an approve, restrict or block decision for each, AI policy acceptance by version, AI literacy training records and an audit trail, without collecting prompts or conversations.
How companies run VAHTOR
Connect the extension
People install VAHTOR in Chrome, Edge, Safari, Firefox, Brave, Opera, or another browser they use, then join with a personal device code.
Govern the tools
Classify what shows up. Set approve, restrict or block once for the company.
Keep the records
Policy acceptance, literacy scores and an audit trail — ready when someone asks.
Your Questions, Answered
Everything you need to know to understand how the platform works, all in one place.
What is VAHTOR?
VAHTOR is an AI governance platform from Vahtor Oy, Mikonkatu 9, 00100 Helsinki, Finland. Its browser extension runs in Chrome, Edge, Safari, Firefox, Brave, Opera, and the other browsers people use. It shows which AI tools people use, lets you approve, restrict or block them, and keeps policy and training records, without collecting prompts or conversations.
How can I see which AI tools my employees use?
Measure AI use where VAHTOR is installed: Chrome, Edge, Safari, Firefox, Brave, Opera, or another browser. Each person joins with a personal device code, and every AI site they open appears in one company inventory with the tool name and time. Phone apps and desktop AI apps are outside the extension.
How do I control how employees use ChatGPT?
Combine a clear rule with a control in the browser. Publish a company AI policy from a template and track who accepted it, mark each AI tool as approved, restricted or blocked, and turn on a Files rule so PDF, Excel and Office attachments to AI tools are cancelled before they leave the tab.
Can I block file uploads to ChatGPT without blocking ChatGPT?
Yes. Mark ChatGPT as approved and keep a Files rule on. People keep using the tool, while PDF, Excel and Office attachments to covered AI sites are cancelled in the tab. The employee sees a banner explaining why, and an alert is logged without the file contents. Files rules are in Business and Enterprise.
Do you read employees' prompts or AI chats?
No. Prompt and chat text is never sent to VAHTOR. Checks for credentials, secrets and file attachments run on the employee's device. Your workspace sees the AI tool name, the time, a detection type and risk level, plus policy and training records. Reporting is aggregated by default; names appear only if the owner turns them on.
Does VAHTOR help with EU AI Act AI literacy (Article 4)?
It gives you the evidence: an AI tool inventory, policy acceptance by version, an AI literacy course with modules and a quiz, completions recorded per person, and an audit trail. Article 4 has applied since 2 February 2025, and it does not require a certificate. VAHTOR supports your compliance work; it is not legal advice.
How much does VAHTOR cost?
Starter is €199/month + VAT for up to 25 employees, Business is €499/month + VAT for up to 100 employees, and Enterprise starts from €1,690/month + VAT for 100+ employees. Annual billing is 20% off. There is a one-time onboarding fee, and you can start with a trial code.
Get complete visibility and control over workplace AI
Create a workspace, apply a trial code or choose a plan, then connect the extension.
Get started