ChatGPT Enterprise vs Claude Enterprise
Both commit your whole company to one vendor’s models for a year. Here is how they compare on price, seats, contracts and compliance, from both vendors’ own pages, and how Harriet runs both from one place.
ChatGPT Enterprise
- Price
- Not published
- Minimum seats
- Reported around 150
- Contract
- Annual only
- Models
- OpenAI only
Claude Enterprise
- Price
- $20 a seat plus usage
- Minimum seats
- 20 self-serve, 50 via sales
- Contract
- Billed annually
- Models
- Anthropic only
Harriet
- Price
- Flat platform fee plus usage
- Minimum seats
- None
- Contract
- Monthly, no annual commitment
- Models
- Claude, ChatGPT, Gemini, open models
Which should you buy?
ChatGPT Enterprise and Claude Enterprise are close on the fundamentals, and both commit your whole company to one vendor’s models.
Both give every employee an AI assistant with SSO, SCIM, admin controls, audit logging and no training on your data by default.
The differences are commercial.
Claude Enterprise publishes its price, $20 per seat a month plus usage, from 20 seats self-serve or 50 through sales.
ChatGPT Enterprise publishes no price and sells annual contracts through sales, and third-party reports put it around $45 to $75 per user a month with seat minimums around 150.
Neither vendor’s console governs the other vendor’s models, so running both means two contracts, two consoles, two audit trails and two bills.
Harriet is the option that runs both.
Your teams get Claude and ChatGPT side by side, plus Gemini and open models, with one set of policies, spend caps per team and per user, and one audit trail.
It has no seat minimum and no annual commitment, and offers EU data residency.
More detail on Claude Enterprise pricing, ChatGPT Enterprise pricing, the Claude Enterprise alternative and cost control.
The differences that actually decide it
Vendor columns come from OpenAI’s and Anthropic’s published pricing, help and support pages. Where a vendor does not publish a figure, this table says so rather than guessing.
We build Harriet. Its column describes our own product.
| Fact | ChatGPT Enterprise | Claude Enterprise | Harriet |
|---|---|---|---|
| Published pricing | Not published, contact sales; reported at $45 to $75 per user / month | $20 per seat / month access fee, plus model usage billed separately | Flat platform fee plus model usage, through your own keys or managed credits |
| Minimum seats | Not published; widely reported around 150 | 20 self-serve, 50 sales-assisted | None |
| Contract | Annual only | Billed annually | Monthly plans, no annual commitment |
| Identity and access | SAML SSO, SCIM, role-based access control | SSO with domain capture, SCIM and just-in-time provisioning, role-based access control | Single sign-on and provisioning from your company directory, per-team model and tool permissions |
| Audit and compliance | Compliance API, SOC 2 Type 2, ISO 27001 family | Audit logs, Compliance API, customer-managed encryption keys, HIPAA-ready offering | One audit trail for every prompt, model and tool call, SOC 2 Type II certified |
| Data residency | Broad regional coverage including US, EU, UK, Japan, Canada, Australia | Enterprise controls including customer-managed keys and retention settings | EU or US hosting, chosen per team |
| Training on your data | Not by default | Not by default | Not by default |
| Spend control | Spend controls by group, within OpenAI only | Admin spend limits, within Anthropic only | Hard caps per team and per user across every provider |
| Models you can govern | OpenAI models only | Anthropic models only | Claude, ChatGPT, Gemini and open models |
Not published means the vendor prints no figure. Dotted marks a third-party report, not vendor fact.
The last row decides most of it. Each vendor’s console governs only its own models, so a second provider means a second contract, console, audit trail and bill. Harriet governs them all from one place.
Which one fits
Each is a reasonable buy for the right company. Most companies we talk to need the third.
ChatGPT Enterprise
Your company is large enough to negotiate a direct annual contract, you need OpenAI’s specific data residency regions or Enterprise Key Management, and standardizing on one vendor is a deliberate strategy rather than a default.
Claude Enterprise
You want to see the price before you talk to sales, start at 20 seats rather than around 150, and you need Anthropic’s compliance surface such as customer-managed encryption keys or their HIPAA-ready offering.
Harriet
Your teams want different models, your finance team wants one bill and hard caps, and you would rather not fix a year-long contract to whichever vendor is ahead this quarter.
Run both, govern once
Harriet sits above both vendors, so you never have to pick one for the whole company.
The Claude Enterprise alternative- Both vendors’ models available to your teams, plus Google and open models hosted in the EU or US, through one router.
- One policy layer where admins choose which models each team can use, with hard budget caps per team and per user across every provider.
- One audit trail covering every prompt, model and dollar, with tool-level MCP controls. SOC 2 Type II certified, EU data residency available.
- No seat minimum and no annual single-vendor commitment. Bring your own provider keys and keep the contracts you already have.
Questions buyers ask first
Which is cheaper, ChatGPT Enterprise or Claude Enterprise?
On published numbers, Claude Enterprise is the cheaper entry point, at $20 per seat per month as an access fee, with model usage billed separately and a 20-seat self-serve minimum. OpenAI does not publish ChatGPT Enterprise pricing; third-party reports put it at $45 to $75 per user per month with seat minimums around 150, sold on annual contracts. Per-seat price is only half the bill on either platform, because the bigger cost lever is which model each person uses day to day. Harriet has no seat minimum, prices only the people it actually provisions, and lets you set that model policy and a hard cap per team across both vendors.
Do both keep our data private?
Yes, both state that they do not train on your business data by default, and both carry serious enterprise compliance surfaces. ChatGPT Enterprise offers SAML SSO, SCIM, a Compliance API, Enterprise Key Management, IP allowlisting, SOC 2 Type 2 and the ISO 27001 family, plus data residency across a broad set of regions. Claude Enterprise offers SSO with domain capture, SCIM and just-in-time provisioning, audit logs, a Compliance API, customer-managed encryption keys, IP allowlisting and a HIPAA-ready offering. Harriet adds EU data residency and one audit trail across both, and is SOC 2 Type II certified.
Which has the better models?
This changes every few months. Both vendors ship frontier models that leapfrog each other on benchmarks and on the work your team actually does. Committing your whole company to one vendor for a year fixes today’s answer in place for a market that moves faster than the contract term. With Harriet, each team uses whichever model is best for its work this quarter, and you switch without a new contract.
Can we run both?
Yes, and a growing number of companies do. What you cannot do is govern both from either vendor’s console, because ChatGPT Enterprise administers OpenAI models and Claude Enterprise administers Anthropic models. Running both natively means two contracts, two admin consoles, two audit trails and two bills. Harriet is built for this. It provisions and governs models from both vendors, plus Google and open models hosted in the EU or US, with per-team policies, hard budget caps and a single audit trail.
What is the alternative to choosing one?
Buy neither as your company-wide standard. Harriet sits in front of the model providers and routes each team to the right model, so you keep Claude and ChatGPT available without an annual single-vendor commitment. It provisions a desktop AI assistant to every employee device, lets admins decide which models each team can use, sets hard budget caps per team and per user, and audits every action down to the tool call. Pricing is quoted per organization for the people Harriet actually provisions, with your own API keys or managed credits, and no seat minimum.
Run both from one place.
Book a 20-minute call and we’ll price Harriet against the quote in front of you, line by line.
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