Same $20/mo as ChatGPT Plus. French controller, hardware-sealed inference. No training on your data. Sealed memory so even our own engineers cannot read your prompts.
For founders, lawyers, doctors, journalists, researchers, and anyone who refuses to paste sensitive prompts into a US chatbot that trains on them by default.
01, THE PRIVACY PROBLEM
Most users assume that paying $20/month for ChatGPT Plus buys them privacy. It does not. The consumer plan defaults to using your conversations for model training, runs on US infrastructure under FISA 702 jurisdiction, and provides no hardware confidentiality. Microsoft, as the underlying compute provider, has commercial access to the inference layer. None of this is illegal, hidden, or surprising, it is documented in OpenAI's terms, but it makes ChatGPT Plus a poor fit for any conversation that touches client data, medical information, financial details, or confidential business strategy.
Default training on your prompts
OpenAI uses consumer ChatGPT conversations to improve models unless you manually opt out. Most users never check the toggle.
US jurisdiction and FISA 702
OpenAI servers operate primarily in the US. Section 702 of the Foreign Intelligence Surveillance Act allows compelled access to non-US persons' data.
No hardware confidentiality
OpenAI runs on Microsoft Azure VMs. Operators with infrastructure-level access can technically inspect inference memory. There is no Intel TDX enclave separating you from them.
No native RGPD Article 28 DPA on consumer plans
A consumer ChatGPT Plus subscription is not a B2B contract. There is no DPA signed by OpenAI as your processor, that is reserved for ChatGPT Enterprise.
02, HOW VOLTAGEGPU PLUS IS DIFFERENT
VoltageGPU Plus runs every conversation inside an Intel TDX hardware enclave we operate. Memory is encrypted with AES-256 keys fused directly into the CPU silicon. Even our own engineers, with full root access to the host machine, cannot read the contents of an active session. We are a French company (VOLTAGE EI, SIREN 943 808 824) so US disclosure orders under FISA 702 or the CLOUD Act do not apply. RGPD Article 28 Data Processing Agreement is native on every plan. We do not train on your prompts on any plan, ever.
Intel TDX hardware sealing
Memory encrypted with AES-256 keys fused into the CPU. Even VoltageGPU staff cannot read active sessions.
ECDSA attestation on request
Every confidential chat can emit a signed attestation report you can independently verify via Intel's root key.
EU controller, EU compute
VOLTAGE EI, French company, SIREN 943 808 824, is your counterparty and the customer database is EU-hosted. Inference runs inside Intel TDX trust domains on a GPU provider named in the DPA.
Article 28 DPA on every plan
RGPD-compliant Data Processing Agreement is the default contract, not an enterprise upgrade.
Zero training, zero retention
Prompts are not logged, not used for training, not retained beyond the conversation buffer you control.
256K context on flagship
Qwen3.5-397B-TEE handles entire books, repositories, or contract bundles in one conversation.
03, COMPARISON
| FEATURE | VoltageGPU Plus | ChatGPT Plus | Copilot | Mistral Le Chat |
|---|---|---|---|---|
| Monthly price (consumer plan) | $20/mo (Plus) | $20/mo | $30/mo | €14.99/mo |
| Default training on user prompts | Never | Yes, opt-out required | No (Microsoft 365) | No |
| Hardware memory sealing (TDX / SEV-SNP) | Yes, Intel TDX | No | No | No |
| Primary jurisdiction | France (EU) | United States | United States | France (EU) |
| FISA 702 / CLOUD Act exposure | No | Yes | Yes | No |
| Native RGPD Article 28 DPA | Native, no negotiation | Enterprise only | Available (Microsoft DPA) | Available |
| Maximum context window | 256K (Qwen3.5-397B-TEE) | 128K (GPT-4o) | 128K | 128K |
| Per-session attestation report | Yes (ECDSA-signed) | No | No | No |
Sources: OpenAI Terms of Use, Microsoft 365 Copilot Privacy and Compliance, Mistral Le Chat documentation. Comparisons reflect default consumer plan behavior at time of writing.
04, MODELS AVAILABLE INSIDE THE ENCLAVE
Qwen3-32B-TEE
32K context
Fast responses, comparable quality to GPT-4o-mini for everyday tasks. Available on Free, Plus, and Pro.
Qwen3.5-397B-A22B-TEE
256K context
Long-document conversations, code, analysis. The longest hardware-sealed context window publicly available in the EU.
DeepSeek-V3.2-TEE
64K context
Step-by-step reasoning for math, code, planning. Comparable to OpenAI o1. Available on Pro.
05, PRICING
FREE
50 messages per month on Qwen3-32B-TEE. No credit card. Hardware-sealed inference.
Try freePLUS
2,000 messages on Qwen3.5-397B-TEE (256K context). Full attestation. Native RGPD DPA.
Get PlusPRO
Unlimited Qwen3.5-397B-TEE plus DeepSeek-V3.2-TEE reasoning. Private LoRA fine-tuning. SSO. Priority support.
Talk to sales06, FAQ
Is VoltageGPU Plus a real ChatGPT alternative or a thin wrapper?
It is a complete alternative. We do not call OpenAI. Inference runs on Qwen3 and DeepSeek base weights deployed inside Intel TDX enclaves we operate. Same $20/month entry price as ChatGPT Plus, with hardware-level confidentiality OpenAI cannot offer.
Does ChatGPT Plus train on my conversations by default?
On the consumer plan, OpenAI uses your prompts for model training unless you manually disable it under Settings > Data Controls > Improve the model for everyone. Most users never touch that setting. VoltageGPU has no such toggle because we never train on user prompts on any plan.
What does Intel TDX actually protect against?
TDX uses AES-256 keys fused into the CPU to encrypt the entire memory of a virtual machine at runtime. A malicious cloud operator, a host-level intruder, or a court order targeting our infrastructure cannot read the contents of an active TDX trust domain. The threat model assumes a compromised hypervisor and still keeps your data sealed.
Can I verify that my chat actually ran inside a TDX enclave?
Yes. Every confidential inference session can produce an ECDSA-signed attestation report including the measurement of the running enclave image, signed by Intel's root key. Visit /trust for live attestation evidence and the verification procedure.
What about latency? TEE compute used to be slow.
Modern TDX on Sapphire Rapids and Granite Rapids adds roughly 5-8% overhead versus standard inference. For interactive chat this is imperceptible. Qwen3-32B-TEE typically responds in under 800ms first-token, Qwen3.5-397B-TEE around 1.4s.
How is this different from Mistral Le Chat?
Le Chat is also EU-based and does not train on prompts, which is great. The differentiator is hardware sealing: Mistral runs on standard cloud VMs and a Mistral operator with infrastructure access could technically inspect inference memory. With Intel TDX that is cryptographically infeasible, even our own staff cannot read your prompts.
Try Private ChatGPT free
50 messages per month, hardware-sealed. No credit card.