ChatGPT Enterprise and Custodos compared
ChatGPT Enterprise brings OpenAI's models into a corporate environment. Custodos brings the models of several providers into one platform, with data stored in Switzerland and AI processing in the EU or Switzerland. The difference lies in model lock-in, the entry point and the legal jurisdiction.
- ChatGPT Enterprise runs OpenAI models only. Custodos bundles GPT, Claude, Gemini and Mistral behind one login.
- OpenAI offers data residency for the region “Europe (EEA and Switzerland)” as a whole. With Custodos your data is stored in Switzerland, and for AI processing you decide between the EU and Switzerland.
- OpenAI publishes no price for ChatGPT Enterprise; the plan runs through sales. Custodos starts at €12 per seat per month billed annually (€15 monthly), bookable online from the first team onwards.
- Neither platform trains models on your business data.
Custodos and ChatGPT Enterprise side by side
Figures for ChatGPT Enterprise come from OpenAI's own documentation. Where OpenAI publishes no numbers, this is stated explicitly.
Model choice
- Custodos
- GPT, Claude, Gemini and Mistral, freely selectable per task
- ChatGPT Enterprise
- OpenAI models only.
Storage and AI region
- Custodos
- Stored in Switzerland; AI processing in the EU or Switzerland, as you choose
- ChatGPT Enterprise
- Data residency in ten regions, among them “Europe (EEA and Switzerland)” as one combined region.
Switzerland as its own region
- Custodos
- Yes, selectable separately from the EU
- ChatGPT Enterprise
- No. Switzerland is part of the combined Europe region, not a separate choice.
Training on your data
- Custodos
- No
- ChatGPT Enterprise
- No. OpenAI states that it does not train on business data from enterprise workspaces.
Show all 10 criteria
Entry price
- Custodos
- €12 to €72 per seat per month billed annually (€15 to €90 monthly), published
- ChatGPT Enterprise
- Not published. Pricing is negotiated individually through sales.
Seat minimum
- Custodos
- None, from the first team onwards
- ChatGPT Enterprise
- OpenAI publishes no figure; Enterprise terms are available through sales.
Free trial
- Custodos
- 7 days
- ChatGPT Enterprise
- No self-service access at enterprise level. The entry point for small teams is ChatGPT Business.
Professional secrecy in DACH
- Custodos
- Designed for § 203 of the German Criminal Code, § 121 of the Austrian Criminal Code and Art. 321 of the Swiss Criminal Code
- ChatGPT Enterprise
- No product-level statement on these provisions.
Financial supervision in DACH
- Custodos
- Supports outsourcing requirements from BaFin and MaRisk, the EBA, the FMA and FINMA
- ChatGPT Enterprise
- A general enterprise compliance programme with no reference to DACH supervisors.
Provider
- Custodos
- Stellar GmbH, Cham (Switzerland)
- ChatGPT Enterprise
- OpenAI, San Francisco (USA).
Prices as of November 2026, other details as of September 2026. Figures for the other provider come from that provider's own sources, linked below. Prices and features change; check both before you decide.
Where the difference shows in daily work
Four points that separate a platform from a single model provider.
Four providers instead of one
Buying ChatGPT Enterprise means buying OpenAI. Custodos keeps GPT, Claude, Gemini and Mistral available in parallel, so you stay able to act when one provider changes prices, availability or terms.
The EU and Switzerland are two answers
OpenAI treats “Europe (EEA and Switzerland)” as one region. For organisations that must fix the processing location as Switzerland or as the EU, that is not a decision but a blanket assurance.
Start without a sales call
Custodos starts with one team at €12 per seat per month billed annually (€15 monthly), bookable online. OpenAI's Enterprise plan is available through sales, and OpenAI publishes no price for it.
Built around the DACH legal framework
Professional secrecy, the revFADP, supervisory requirements for outsourcing: Custodos is built for organisations where these questions come at the start of a selection process, not at the end.
- When you do not want to commit to one model providerThe model market moves fast. One route to leading models from several providers turns switching into a setting rather than a project.
- When the organisation is smaller than an enterprise contractLaw firms, fiduciary offices and mid-sized companies need the same governance features as corporations, but not their seat counts. Custodos starts with the first team.
- When the processing location has to be documentedYour data is stored in Switzerland and you choose the AI region, EU or Switzerland; we provide the data processing agreement and the documentation for your review.
Custodos supplies the technical preconditions for handling your data confidentially. The legal assessment in each individual case remains with your organisation.
What speaks for ChatGPT Enterprise
OpenAI builds the models that set the pace of this market and ships new capabilities in its own product first. If you want the newest tier immediately and work with GPT only anyway, going to the source is faster than any platform in front of it.
Read more
OpenAI has also come a long way on the plumbing; that belongs in an honest comparison:
- Data residency in ten regions at no extra cost, with in-region inference for supported locations.
- A mature administration package with SSO and SAML, SCIM provisioning, role-based permissions, audit logs, a compliance API and enterprise key management.
- Audited evidence such as SOC 2, which Custodos does not currently provide in that form.
- The largest user base on the market: many employees already know the interface from private use, which lowers training effort.
Sources
- Data residency and inference residency for ChatGPT · OpenAI Help Center
- Enterprise privacy at OpenAI · OpenAI
- Expanding data residency access to business customers worldwide · OpenAI
- ChatGPT: plans and pricing · OpenAI
All product and company names mentioned are trademarks of their respective owners. Custodos has no business relationship with the providers compared here; this comparison is based solely on publicly available information.
Frequently asked questions
What does ChatGPT Enterprise cost?
OpenAI publishes no price for ChatGPT Enterprise and refers to its sales team for the plan. Custodos costs €12, €24 or €72 per seat per month billed annually (€15, €30 or €90 monthly) depending on the plan, excl. VAT, and can be booked online from the first team onwards.
Does ChatGPT Enterprise store my data in Switzerland?
OpenAI offers data residency for a “Europe” region that combines the European Economic Area and Switzerland. There is no option for Switzerland alone or the EU alone. Custodos separates the two: your data is stored in Switzerland, and you determine whether the AI models process in the EU or in Switzerland.
Is Custodos an alternative to ChatGPT Enterprise for small teams?
Yes, and that is exactly where the entry point differs: Custodos starts at €12 per seat per month billed annually (€15 monthly) with no seat minimum and a seven-day free trial. Governance features such as SSO, central roles and permissions and an activity log belong to every seat, not only above a certain company size.
Do I get the same OpenAI models through Custodos as with ChatGPT Enterprise?
Custodos bundles the leading models from OpenAI, Anthropic, Google and Mistral behind one login; new models are added as they become available in the EU or Switzerland. Individual brand-new features from OpenAI's own product may arrive later or not at all; in exchange you choose the right model for each task, without separate contracts and logins.