Top 5 ChatGPT Enterprise Alternatives (2026)

Companies leave ChatGPT Enterprise for four reasons, and OpenAI’s own pages document each of them.

• No published price. OpenAI’s pricing page lists ChatGPT Enterprise as “Custom pricing” and sends you to sales. Budgeting starts with a negotiation.
• EU residency depends on the plan. OpenAI offers inference in Europe on Enterprise. On ChatGPT Business, OpenAI stores “a copy of every prompt and response” in the United States for a limited time, whatever region you choose.
• A separate window. ChatGPT is its own app. It reaches Microsoft Teams through a connector, and its workspace agents run “in ChatGPT or Slack”.
• Agents you build and pay for. For ChatGPT to run work on its own schedule, someone builds a workspace agent, connects its apps, schedules it and maintains it. Agent runs are billed on credits since 6 May 2026.

The five alternatives below start with the one built for companies that work in Microsoft Teams. For the direct head-to-head, see amaiko vs ChatGPT Enterprise. For OpenAI’s plan for teams, read our article on ChatGPT Business.

1. amaiko: AI with memory, inside Microsoft Teams

amaiko is a chat in Microsoft Teams. Your team asks where it already works, and amaiko reads and drafts across email, calendar, files, Word, Excel and PowerPoint documents, Teams chats, OneNote and SharePoint. There is no separate app, no new interface and no training programme. For your team that means no switching windows and no answers to carry back by hand.

amaiko builds a persistent corporate memory. It learns how each person works and consolidates your team’s conversations into lasting company knowledge overnight: projects, customers, decisions, who knows what. Nobody has to build an agent for it, and the knowledge stays when an employee leaves. amaiko teams spend 35% less time searching and onboard new hires up to 57% faster.

amaiko acts before anyone asks. Briefings and summaries are ready when your team starts its day, and a network of specialised agents handles email, research, documents and your business systems. It works with HubSpot, Personio, DATEV, Dynamics 365 Business Central, Jira, Confluence, Asana and more from a growing marketplace. Underneath runs GPT-6, so leaving ChatGPT does not mean leaving frontier models.

Your data is hosted in Germany on amaiko’s own infrastructure, with AI processing in the EU, for every customer. amaiko is GDPR-compliant and aligned with ISO 42001; details are on the security page. For your data protection officer that means one answer instead of a feature list per plan.

The price is published: €41.58 per user per month, billed annually (€499 per user per year), or €49.90 monthly, from five seats, with unlimited tokens. A 10-person company pays €4,990 in year one. See pricing, or book a demo to see amaiko in your own Teams.

2. Microsoft 365 Copilot: AI inside the Office apps

Microsoft 365 Copilot works in Teams, Outlook, Word, Excel and PowerPoint. Microsoft sells Copilot Business as an add-on to a Microsoft 365 plan, currently from $18 per user per month paid yearly, reduced from $21.

Where it falls short: your prompts are processed in Microsoft’s cloud, and when a tenant allows flex routing, Microsoft says prompts, responses and grounding data “may be processed outside the EU Data Boundary”, including in the US, Canada and Australia. Full comparison: amaiko vs Microsoft 365 Copilot.

3. Langdock: a model-agnostic AI platform on Azure

Langdock offers chat with a choice of models and custom agents, with a Teams app for asking @Langdock in chats and channels. Pricing: €23.20 per Business seat per month billed annually (Business seats: volume discounts above 50) and excluding VAT, €99 for a Business Max seat, workflows as a separate package, and a governance add-on that Langdock includes free only until 1 January 2027.

Where it falls short: Langdock hosts its standard platform on Microsoft Azure in the EU. If you enable models with “global deployment”, its data processing agreement says inference runs in other Microsoft data zones, including the US. Full comparison: amaiko vs Langdock.

4. meinGPT: a German AI platform on Hetzner

meinGPT is a German AI platform with chat, assistants, meeting notes and workflows, hosted on Hetzner in German data centres and ISO 27001:2022 certified.

Where it falls short: the price has two parts. The licence costs €18 per user per month for up to 50 users, including a 10% annual discount, and includes no model costs: you add a usage budget on top. Its Teams integration reads Teams chats and turns selected conversations into summaries. Full comparison: amaiko vs meinGPT.

5. Glean: enterprise search and agents

Glean connects more than 275 work apps and data sources for search, an assistant and agents, and is available in Teams, Slack and the browser.

Where it falls short: Glean publishes no prices; its site offers a demo instead. Its partner page offers implementation playbooks and “dedicated project teams to get Glean into production in weeks”. amaiko starts as a chat in Teams. Full comparison: amaiko vs Glean.

See it in your own Teams

amaiko runs inside Microsoft Teams, builds company knowledge without anyone building agents, and is hosted in Germany on its own infrastructure at a published price. Book a demo and ask it the questions your team asks every day.