What your team pastes into ChatGPT
never comes back.
Run an open, ChatGPT-class assistant on your own dedicated DGX Spark. Same workflow for your team, chat UI, API, but every prompt stays on hardware only you can reach.
Blocking doesn't work. Replacing does.
If you're searching for how to block ChatGPT on the firewall, you already know the problem.
The leak is invisible
Contracts, source code, customer records, pasted into a US-hosted consumer tool, one convenient prompt at a time. Samsung banned ChatGPT in 2023 after engineers pasted internal source code into it. Most companies never find out. What the research actually shows.
The block backfires
Filter it on the corporate network and the same prompts move to personal phones, same leak, now with zero visibility. Bans don't remove the need; they remove your ability to see it.
The replacement wins
Give the team a sanctioned assistant that's just as convenient. Adoption is voluntary because the tool is good, and every prompt lands on your dedicated EU machine instead of someone else's cloud.
What you get
A familiar chat interface
Open WebUI on your instance, conversations, folders, file upload, shared team workspaces. Your team won't need training to switch; it works the way they already work.
An OpenAI-compatible API
The same endpoint shape your tools already speak. Point internal apps, editors, and scripts at your own instance by changing one base URL.
Open models, your choice
Qwen, Llama, DeepSeek, swap models as the field moves. A 70B-class model at Q4 with a long context runs comfortably in 128 GB of unified memory.
Usage visible to you, invisible to us
Logs, prompts, and documents stay on the node's local disk, inside your own container. You can audit everything; we can see nothing.
The cost math
Per-seat pricing punishes growth. A dedicated machine doesn't care how many people use it.
| Private ChatGPT on GPUwerk | ChatGPT Enterprise | |
|---|---|---|
| Pricing model | $1,490/mo flat (Reserved node) | Per seat, quoted on request |
| Cost at 25 users | $1,490 | 25 seats |
| Cost at 100 users | The same $1,490 | 100 seats |
| Data location | Your dedicated machine, EU-Central | Provider cloud, US company |
| Who can read prompts | Only you | Provider, under its terms |
| Model quality | Best open models, excellent, a step behind frontier | Frontier models |
We quote no seat price for ChatGPT Enterprise because OpenAI publishes none, it is sold on a negotiated quote. Get one and put it next to $1,490, that is the whole comparison. Read the last row carefully too: frontier models are still ahead of open ones, and if your use case needs the absolute frontier this isn't your page. For everyday drafting, coding, and internal knowledge work, current open models clear the bar.
Private ChatGPT by Friday.
Deploy a Spark, load a model, invite the team, the $50 first top-up bonus helps cover the setup and trial.
Start now Have us set it up