Langdock: GDPR-Compliant AI Platform for Businesses
Employees want to work with AI, but IT pumps the brakes: consumer tools like ChatGPT are legally risky, and shadow AI on private accounts even more so. This is exactly the gap Langdock fills. The Berlin platform makes the major language models usable company-wide, with EU hosting, central administration, and a data processing agreement.
For decision-makers, the questions are: What can the platform do, what does it cost, and when is a custom integration of the AI models the better option?
What Langdock Is
Langdock was founded in Berlin in 2023 and went through the Y Combinator program. The platform is deliberately model-agnostic: instead of training its own language model, it bundles over 40 models from OpenAI (GPT), Anthropic (Claude), Google (Gemini), Mistral, and Meta (Llama) into one interface. When a new model generation appears, it becomes available without switching platforms.
The concept has struck a chord: more than 10,000 companies use Langdock, including Merck with over 33,000 active users, BASF, Würth, Trumpf, and Der Spiegel. That makes Langdock one of the most successful German AI vendors in the enterprise space.
The Features at a Glance
Chat: The core of the platform. Employees pick the right model per conversation, upload documents, and work with company knowledge. The experience matches ChatGPT, but the data stays under the company's control.
Assistants: Predefined AI helpers for recurring tasks, such as proposal drafts, translations in company wording, or support replies. Departments build assistants without programming.
Knowledge base: Langdock indexes company documents and answers questions based on them, technically a RAG system without any in-house development effort.
Workflows: Multi-step automations that process documents, generate content, and connect systems through integrations, similar to n8n but focused on AI tasks.
API: Developers use the connected models through a unified interface in their own applications.
Data Privacy: The Core Argument
The main reason companies choose Langdock is compliance:
- Hosting in Frankfurt: All data resides on servers in Germany, with private cloud and on-premise options for larger deployments.
- Certifications: ISO 27001 and SOC 2 Type II.
- Data processing agreement (DPA) directly with Langdock, instead of individual contracts with each model provider.
- No training on your data: Inputs are not used to train the models.
- Central administration: SSO, permission management, and audit logs make AI usage traceable for IT and data protection officers.
This allows AI adoption even in regulated industries such as finance, healthcare, or legal, without every department making its own tooling decisions.
Langdock vs. ChatGPT Enterprise vs. Copilot
| Criterion | Langdock | ChatGPT Enterprise | Microsoft 365 Copilot |
|---|---|---|---|
| Models | 40+ (GPT, Claude, Gemini, Mistral) | OpenAI only | OpenAI/Microsoft only |
| Hosting | Frankfurt, EU | US/EU depending on contract | Microsoft Cloud |
| Vendor lock-in | Low, model-agnostic | High | High |
| Integration | Own tools + API | Ecosystem-dependent | Deep in Microsoft 365 |
| Vendor | Berlin, German company | US | US |
Our article on Microsoft 365 Copilot takes a closer look at the Microsoft route.
The model-agnostic approach is the decisive difference: whoever uses the best model for text tasks today can pick a different one for coding tasks tomorrow, without new contracts and without migration. arocom recommends this vendor independence for the architecture of custom AI integrations as well.
When Langdock Is Worth It and When It Is Not
Langdock fits when AI is being rolled out as a working tool for many employees: from around 20 users, with central control, GDPR requirements, and no in-house development team. The Business plan costs about 20 EUR per user per month (as of July 2026); workflows and enterprise deployments are priced separately.
Langdock does not fit when AI is meant to become part of your product or website. Semantic search in a customer portal, AI-supported editorial workflows in the CMS, or automated data extraction belong in the platform itself. For that, arocom integrates the model APIs directly into Drupal, with a vector database, a custom RAG setup, and full control over data flow and cost.
The two approaches are not mutually exclusive: many companies use a platform like Langdock for internal AI adoption while having AI features integrated into their customer platform in parallel.
Integrate AI into your own platform?
arocom advises vendor-independently on AI platforms and integrates GPT, Claude, and co. directly into Drupal. Write to us for a no-obligation conversation.
Which platform, which model, which legal framework: questions we regularly work through on client engagements. For strategic sparring at executive level there is arocon, the consulting brand from the arocom family.
What is Langdock?
Langdock is an AI platform from Berlin that bundles over 40 language models (GPT, Claude, Gemini, Mistral, Llama) into one GDPR-compliant interface. Businesses get chat, assistants, workflows, and API access with hosting in Frankfurt and central user management.
Is Langdock GDPR-compliant?
Yes. Data resides on servers in Frankfurt, Langdock is ISO 27001 and SOC 2 Type II certified, provides a data processing agreement, and does not use inputs to train the models. Private cloud and on-premise options exist for larger deployments.
What does Langdock cost?
The Business plan costs about 20 EUR per user per month (as of July 2026), with a discount on annual contracts. Workflows are priced per workspace, enterprise deployments individually. A free 7-day trial is available.
What distinguishes Langdock from ChatGPT?
ChatGPT offers only OpenAI models, while Langdock bundles over 40 models from different vendors and lets you pick the right one per task. Add EU hosting, central administration, and a German contract partner, for many companies the prerequisite for officially adopting AI at all.
Does Langdock replace a custom AI integration?
No. Langdock is a working tool for employees. As soon as AI is meant to flow into your website or product, for example as semantic search or an editorial assistant in the CMS, the model APIs need to be integrated directly into the platform. The two complement each other.
Who is behind Langdock?
Langdock was founded in Berlin in 2023 by Lennard Schmidt, Jonas Beisswenger, and Tobias Kemkes and went through the Y Combinator program. Customers include Merck, BASF, Würth, Trumpf, and Der Spiegel.
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