ChatGPT Enterprise alternatives for companies.
Hosted assistant, or a private build your company owns.
Most companies comparing ChatGPT Enterprise are really asking one question: rent a hosted assistant, or build a private one that lives inside your systems. This page compares both, fairly, and shows where each is the right call.
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Hosted assistant, or a private build.
ChatGPT Enterprise, Claude, Gemini, and Copilot are all hosted assistants. They differ on ecosystem fit and price, but they share the same shape: you rent seats, your data is processed on the provider’s infrastructure, and the assistant sits next to your systems rather than inside them.
For general productivity, that is often exactly what you want.
The moment the requirement becomes deep integration, guaranteed data residency, or ownership, none of the off-the-shelf assistants runs inside your own environment.
That is where a private custom AI build is the right architecture, not a better subscription.
Alternatives to ChatGPT Enterprise, compared.
A fair, high-level comparison. For the deeper sourced breakdown of tiers, privacy terms, and HIPAA coverage, read our ChatGPT alternatives for business guide.
ChatGPT Enterprise
- Best for
- General productivity for teams already standardised on OpenAI.
- Data residency
- Hosted by OpenAI. No self-host option.
- Integration
- Connectors and API. Not built into your systems.
- Ownership
- Subscription. You rent access per seat.
Claude (Team / Enterprise)
- Best for
- Long-context work, drafting, and analysis with a clear no-training commitment.
- Data residency
- Hosted by Anthropic. No self-host option.
- Integration
- API and connectors. Strong for document-heavy work.
- Ownership
- Subscription, per seat.
Gemini (Google Workspace)
- Best for
- Companies already running Google Workspace.
- Data residency
- Hosted by Google. No self-host option.
- Integration
- Native inside Workspace apps.
- Ownership
- Subscription, per seat.
Microsoft 365 Copilot
- Best for
- Companies standardised on Microsoft 365.
- Data residency
- Hosted by Microsoft. No self-host option.
- Integration
- Native inside Microsoft 365 apps.
- Ownership
- Subscription, per seat.
Private custom AI (Ayoob AI)
- Best for
- Regulated firms and companies that need AI inside their own systems.
- Data residency
- Runs on infrastructure you control. On-premise or private cloud.
- Integration
- Built directly into your ERP, CRM, and finance systems.
- Ownership
- You own the software outright.
Choose a private build when any of these is true.
Data cannot leave your environment
Law, accountancy, finance, healthcare, defence. When client or regulatory terms require UK residency or on-premise handling, a hosted assistant cannot meet it. A private build can.
The assistant has to live inside your systems
When the value is in reading your ERP, drafting from your CRM, or reconciling your finance data, you need software integrated with those systems, not a chat window beside them.
You need bespoke logic, not a general chat
When the workflow is specific to how your business runs, a general assistant plateaus. Custom software encodes your process exactly.
You want to own it, not rent it
Per-seat subscriptions scale with headcount forever. A build you own removes the per-seat meter and the vendor lock-in.
ChatGPT Enterprise alternatives: common questions.
What are the best alternatives to ChatGPT Enterprise for a company?
The main hosted alternatives are Claude (Team and Enterprise), Gemini for Google Workspace, and Microsoft 365 Copilot. Each is strong where it fits your existing stack. The separate option, and the one companies reach for when a hosted assistant is not enough, is a private custom AI build: an assistant that runs on infrastructure you control and integrates directly with your systems. The best choice depends on your data residency, integration, and compliance requirements, not on which model scores highest on a benchmark.
What is the difference between ChatGPT Enterprise and a private custom AI build?
ChatGPT Enterprise is a hosted subscription. You rent seats, your data is processed on OpenAI infrastructure, and the assistant sits alongside your systems rather than inside them. A private custom AI build runs on infrastructure you control, keeps your data in your environment, integrates directly with your ERP, CRM, and finance systems, and is owned by your business. One is a productivity tool. The other is software your company owns.
Is ChatGPT Enterprise safe for regulated UK companies?
For many workflows, yes. On the enterprise tier, content is not used to train the model by default. The question for regulated UK firms in law, accountancy, finance, and healthcare is jurisdiction and control: the provider is US-headquartered even where regional data residency is offered, and there is no on-premise option for the assistant. Where regulation or client contracts require that data never leaves your environment, a private build meets the requirement rather than a hosted assistant.
Do the alternatives to ChatGPT Enterprise train on my data?
Not on their business and enterprise tiers. Claude, Gemini, and Microsoft 365 Copilot all make no-training commitments on their business tiers, as does ChatGPT Enterprise. The consumer and free tiers are different, which is why company data should never run through a personal account. A private build removes the question entirely: the data stays on your infrastructure.
Can I run an AI assistant on-premise instead of ChatGPT Enterprise?
Yes, but not with the mainstream hosted assistants, which are cloud-only. Some proprietary models can now be licensed to run on-premise or air-gapped, for example Gemini on Google Distributed Cloud, and open models can be self-hosted. We build private, on-premise AI on models that run entirely inside your environment, integrated with the systems the business already runs, for UK firms where data cannot leave the building.
How much does a ChatGPT Enterprise alternative cost?
Hosted assistants are priced per seat per month, typically tens of pounds per user. A private custom AI build is a different model: a 12-month retainer from £4,000 per month for existing systems, scaling with integration depth and compliance scope. The trade is per-seat rental against a system your business owns, with no per-seat licence and no ongoing cloud LLM subscription. We set exact pricing on a discovery call.
Which ChatGPT Enterprise alternative is best for UK data residency?
If UK data residency is a hard requirement, a private build gives the strongest guarantee, because you choose where it runs. Among hosted assistants, residency options vary by tier and provider and change over time, so verify the current terms before you rely on them. For firms where residency is contractual or regulatory, we build UK-resident private AI so the answer is unambiguous.
Related.
ChatGPT alternatives for business
The deeper sourced comparison: Claude, Gemini, Copilot, Perplexity, and private custom AI.
Custom AI vs ChatGPT
What your business actually needs beyond a general assistant.
Full code AI automation
Custom AI software built from scratch, owned by you, integrated with your stack.
AI automation for UK business
Full code AI software, built in Newcastle, delivered nationally.
Not sure whether to rent or build?
Book a call. We will look at your data, your systems, and your compliance needs, and tell you honestly whether a hosted assistant is enough or a private build is worth it.
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