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ChatGPT Enterprise alternative that runs on your own infrastructure

ChatGPT Enterprise is OpenAI's hosted assistant for organisations, using OpenAI models on OpenAI's infrastructure. DocsGPT is an MIT-licensed platform for assistants and agents over your own documents that runs in the cloud, on your servers or air-gapped, with OpenAI, other cloud providers or local models — chosen and benchmarked by you.

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Last updated: · Facts checked on

ChatGPT Enterprise and DocsGPT at a glance

Licence, hosting, models, price, contract and data access, side by side.

ChatGPT Enterprise is a proprietary, hosted-only assistant on OpenAI models, sold per seat on a quote with no list price; public reporting puts it at about $50 per user per month with a minimum of roughly 150 seats on an annual contract, and OpenAI's service processes the content. The self-serve ChatGPT Business plan lists $25 per user per month. DocsGPT is MIT-licensed and runs in four postures — Cloud and a dedicated Managed instance operated by Arc53, On-premises and Air-gapped on your own servers — plus the free self-hosted community route; it supports OpenAI and any other provider or local engine, publishes its Cloud price and has no seat minimum.

ChatGPT Enterprise and DocsGPT compared on 6 rows
 ChatGPT EnterpriseDocsGPT
Open-source licenceProprietary1MIT (platform and CLI)2
Self-host and air-gapNo — hosted only; no air-gapped mode recorded1Yes — Self-hosted (community), On-premises and Air-gapped (zero external egress), from one seat2
Model choice / BYOMOpenAI models only1Any cloud provider or local engine (Ollama, vLLM, llama.cpp and others); BYOM2
Transparent pricingNot published; ~$50/user/month reported; per-seat, quote-based. ChatGPT Business (self-serve) lists $25/user/month1Yes, per posture: Cloud $20/seat/month; Managed from $2,000/month, flat; On-premises and Air-gapped from $10,000, one-time or recurring2
Seat minimum / contract~150 seats reported, annual contract1None; self-hosting has no licence fee2
Vendor access to dataYes — OpenAI's service processes content under its enterprise terms1Yes on Cloud and Managed — Arc53 operates both, Managed as a dedicated instance in your region; No on On-premises and Air-gapped, which you operate2

¹ ChatGPT Enterprise facts checked on . ·² Sources: docs.docsgpt.cloud and the public repository.

Where ChatGPT Enterprise is the better fit

  • A general-purpose assistant for knowledge workers, not grounded in a document corpus.
  • Access to the newest OpenAI models on the day they ship is the priority.
  • There is no requirement to self-host or to keep content inside your network.
  • Procurement prefers one hosted vendor and per-seat budgeting.

Where DocsGPT is the better fit

  • Answers must be grounded in your documents: each citation opens the exact passage, file and source beside the chat.
  • Content must stay on-premises or in an air-gapped network.
  • OpenAI models are one option, not the only one: other providers, local engines and your own endpoints run in the same platform, swapped and compared with docsgpt-cli bench before a change reaches users.
  • Workflows need deterministic checks and human approval for uncertain cases.
  • Agents act in connected services under your rules: reads run, writes ask first by default, and each action can be set to Allow, Ask first or Off.
  • Spend and behaviour stay visible: usage quotas per person, and a trace of every run exported to your own observability stack.
Models available to agents
models3 models · pick per chat or agent

  • GPT-5.6 Sol

    OpenAI · your API key · LLM_PROVIDER=openai

    defaultcloud

  • Qwen3.8-Flash-Next

    Ollama · http://ollama:11434/v1

    local

  • GLM-5.3-Flash

    vLLM · http://gpu-01:8000/v1

    local

  • + Add model bring your own · openai-compatible

    base url https://…/v1api key ••••••••model id my-model

1–2 days → ~5 min

Transfer-document review that took 1–2 working days (P95) now completes in about 5 minutes, with 12 deterministic and agent checks and human approval for uncertain cases.

Source: Bank (POC), name under NDA

6+ h → under 5 min

IP application drafting: 6+ hours to under 5 minutes per application, with lawyer review as the final step.

Source: Balt Alnoor

Cost at 100 and 1,000 seats

ChatGPT Business at its published list price and ChatGPT Enterprise at the figure public reporting gives, × seats × 12. DocsGPT is flat per deployment.

Annual cost at 100 and 1,000 seats
 ChatGPT BusinessChatGPT EnterpriseDocsGPT
100 seats, per year$30,000/yr$60,000/yr*Cloud $24,000/yr · Managed from $24,000/yr · On-premises from $10,000, one-time or recurring
1,000 seats, per year$300,000/yr$600,000/yrCloud $240,000/yr · Managed from $24,000/yr · On-premises from $10,000, one-time or recurring
Basis$25/user/month list (standard seat) × seats × 12; premium seats are $125/user/monthreported ~$50/user/month × seats × 12. *Below the reported 150-seat minimum; a 100-seat team is billed for 150 ($90,000/yr) or buys ChatGPT BusinessCloud $20/seat/month × seats × 12 · Managed from $2,000/month, flat · On-premises and Air-gapped from $10,000, one-time or recurring, plus your infrastructure

Before negotiation; add-ons excluded; checked on 2026-09-12.

Annual cost vs seatsreported prices · 2026-09-12
Annual cost versus seats: ChatGPT Enterprise per-seat reported price against DocsGPT Cloud per seat and a flat Managed instanceChatGPT Enterprise annual cost rises linearly with seats from zero to $600,000 at 1000 seats. DocsGPT Cloud rises to $240,000; DocsGPT Managed is flat at $24,000 from its from-price.$0$150k$300k$450k$600k02505007501,000SEATSChatGPT Enterprise, reported ~$50/user/moDocsGPT Cloud, $20/seat/moDocsGPT Managed, from $2,000/month flat ($24,000/yr)
Text version

At 100 seats ChatGPT Enterprise costs $60,000 per year at the reported ~$50 per user per month; at 1,000 seats, $600,000. DocsGPT Cloud at $20 per seat per month costs $24,000 per year at 100 seats and $240,000 at 1,000; a Managed instance is flat from $24,000 per year at any seat count; On-premises and Air-gapped start from $10,000, one-time or recurring, plus your own infrastructure. Facts checked on 2026-09-12.

Using OpenAI models inside DocsGPT

OpenAI is one supported provider among cloud providers and local engines. Details on Models & BYOM.

OpenAI is a supported provider in DocsGPT: you bring your own OpenAI API key and choose the model per agent. The platform, your documents, the retrieval index and the audit log stay inside your deployment; only the prompt and retrieved passages go to the provider you selected, and on Air-gapped deployments no cloud provider is configured at all. Each person can also add their own model endpoint under Custom Models, and assistants that speak MCP can search an agent's knowledge through its MCP server.

LLM_PROVIDER=openai · anthropic · google · groq · openrouter · novita · openai_compatible · docsgpt

Ollama, vLLM and other local engines: LLM_PROVIDER=openai + OPENAI_BASE_URL=http://ollama:11434/v1 · provider docs ↗ · local inference ↗

Frequently asked questions

Is there an enterprise version of ChatGPT?

Yes. ChatGPT Enterprise is OpenAI's plan for organisations, sold per seat on an annual contract and run on OpenAI's infrastructure with OpenAI models. OpenAI publishes no Enterprise list price; public reporting puts it at about $50 per user per month with a minimum of roughly 150 seats (checked 2026-09-12). The self-serve ChatGPT Business plan lists $25 per user per month, or $125 for a premium seat.

Can ChatGPT Enterprise be self-hosted?

ChatGPT Enterprise has no self-hosted or on-premises offering (checked 2026-09-12); it is a hosted service. DocsGPT is self-hostable under MIT and runs on-premises or air-gapped.

What is a private ChatGPT for business?

A private ChatGPT for business is an assistant over company documents whose platform, data and audit trail stay under the organisation's control. With DocsGPT that means an On-premises deployment in your data centre or an Air-gapped network with local models only, both operated by you. A Managed instance is the step before that: a dedicated, single-tenant instance in your chosen region, operated by Arc53 rather than by you.

Can I use OpenAI models with DocsGPT?

Yes. OpenAI is a supported provider alongside other cloud providers and local engines; you bring your own OpenAI API key, and the platform, documents and audit log stay in your deployment. See Models & BYOM.

Alex Tushynski

Co-Founder, Arc53

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