A ChatGPT Enterprise alternative
built for regulated industries.

Keep OpenAI's latest models, add Anthropic, Google, and others, and protect sensitive data before any prompt reaches a model.

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Liminal is a ChatGPT Enterprise alternative for regulated organizations. It includes unlimited use of OpenAI's latest models alongside models from Anthropic, Google, Perplexity, and xAI, and protects PHI, PII, PCI, and intellectual property before any prompt reaches a model.

Based on publicly available information as of October 2026.

Liminal vs. ChatGPT Enterprise

liminal
Chatgpt enterprise
Models and usage
Liminal
Unlimited use of OpenAI, Anthropic, Google, Perplexity, and xAI models, plus your own, at one per-user price.
ChatGPT Enterprise
OpenAI models only.
Assistants
Liminal
Assistants work across every model, so teams can switch models without rebuilding them.
ChatGPT Enterprise
Custom GPTs run only on OpenAI models.
Sensitive data
Liminal
PHI, PII, PCI, IP, and your own terms are protected in prompts, documents, audio, and text in images before any model sees them.
ChatGPT Enterprise
Prompts reach OpenAI's models as written. Protection relies on OpenAI's commitments, including no training on business data by default.
Deployment
Liminal
A single-tenant service for every customer, in the US, UK, or EU.
ChatGPT Enterprise
Shared service, with regional data residency available.
Compliance
Liminal
SOC 2 Type 2, HIPAA, HITRUST, FERPA, COPPA, and CIPA, with business associate agreements available.
ChatGPT Enterprise
SOC 2 Type 2 and ISO 27001, with a business associate agreement through OpenAI sales.
Observability
Liminal
Built in: prompt logs, usage insights, alerts on sensitive data, and secure exports to your SIEM.
ChatGPT Enterprise
Conversation logs are available through OpenAI's Compliance API. Using them requires a third-party compliance tool or a custom integration.
Policy controls
Liminal
Data policies and model access can be set by model and by user.
ChatGPT Enterprise
Admin controls for agents, connected tools, and actions.
Cost
Liminal
40 to 60% lower cost than ChatGPT Enterprise, Claude Team, or Microsoft Copilot.
ChatGPT Enterprise
Pricing not published; quoted by OpenAI sales.

Where Liminal
is different.

Every leading model, not one provider's

When another provider's model leads for a task, your teams can use it right away, under the same policies.

Protection before the prompt

Sensitive data is protected before it ever reaches a model, so protection doesn't depend on any one provider's data handling.

A single-tenant service

Every Liminal customer runs on its own single-tenant service.

Liminal model picker showing the latest models from OpenAI, Anthropic, Google, Perplexity, and xAI, with Anthropic selected above the prompt bar.

Which is right for
your organization?

Choose Liminal if

  • Your teams need models from OpenAI, Anthropic, Google, and others, not one provider.
  • You handle PHI, PII, PCI, or IP that has to be protected before any prompt reaches a model.
  • Your auditors expect prompt logs, alerts, and exports your team controls.
  • You want assistants that keep working when you change models.
  • You want a single-tenant service, with US, UK, and EU data residency available.

ChatGPT Enterprise can be enough for teams that have standardized on OpenAI and don't work with regulated data.

Questions from
technology leaders.

Is Liminal an alternative to ChatGPT Enterprise?

Yes. Liminal is a ChatGPT Enterprise alternative for regulated organizations, with unlimited use of OpenAI's latest models alongside Anthropic, Google, Perplexity, and xAI in one governed workspace.

Can our teams still use OpenAI's models through Liminal?

Yes. Unlimited use of OpenAI's latest models is included, alongside models from other leading providers.

Is Liminal less expensive than ChatGPT Enterprise?

Liminal costs 40 to 60% less than per-seat AI subscriptions such as ChatGPT Enterprise, Claude Team, or Microsoft Copilot, with unlimited use of every leading model included.

How does Liminal protect sensitive data differently?

Liminal detects PHI, PII, PCI, and intellectual property in every prompt and protects it before anything reaches a model, according to the policies you set, then restores the details in the response.

Is Liminal HIPAA compliant?

Yes. Liminal is HIPAA and HITRUST compliant, and business associate agreements are available.

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in your organization.

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Last reviewed October 2026.