Aerial view of Munich at dusk with magenta network lines converging on a data centre

NEWGLM 5.3 Flash and Qwen 3.8 27B are now in production.

Preview: DiffusionGemma, an open-source Jev alternative — free on any plan.

The sovereign AI stack.

State-of-the-art models, tools, and infrastructure to build and roll out AI across your organisation: open-source models on Telekom's cloud in Germany, frontier models in the EU.

One platform. A growing toolbox of sovereign AI.

Building blocks that regulated organisations combine to build AI applications and roll AI out to their teams. One European platform, one trusted operator.
LLM Serving

The frontier models. One API.

Switch from OpenAI with one line of code. 30+ open and proprietary models — GPT, Claude, Gemini, Qwen — hosted in Germany or the EU.
  • OpenAI-compatible endpoint
  • Chat, embeddings, multimodal, audio, function calling, reasoning
  • Fine-tuning and Visual RAG available via our professional services
  • Streaming, async, and batch requests built in
SmartChat

Chat that knows your company.

Connect your Confluence or upload your documents, and your team can ask questions with answers grounded in your own sources — cited and traceable, so every claim can be checked.
  • Managed RAG — ingestion to retrieval handled for you
  • Local and Global chat modes
  • Deep Research for complex, multi-step queries
  • Spaces, RBAC, SSO, audit logging — enterprise-ready

Built on certified infrastructure. Every location published.

Certifications in place from day one. Deployment on infrastructure you choose. Each model's server location is published.

Secure and compliant infrastructure.

AIFS runs on T-Cloud public: BSI C5 Type 2 attested and ISO 27001 certified Telekom infrastructure. Every model's data-handling regime is published: models operated by Telekom process your data in Germany; models forwarded to third-party providers follow that provider's terms and may process data worldwide.
ISO 27001 — T-Cloud infrastructure
BSI C5 Type 2 — T-Cloud infrastructure
GDPR-compliant
Hosted in the EU

Models across three clouds. Every location published.

AIFS runs on Telekom's T-Cloud. Telekom-operated models are served from T-Cloud in Germany; third-party models run in the provider's own named regions, and the Gemini family worldwide — so you can pick the ones that keep your data where it needs to be.
Read about enterprise trust
T-Cloud — operated by Deutsche Telekom
Microsoft Azure
Google Cloud Platform

30+ models. One endpoint.

Open-source models on Telekom's T-Cloud in Germany; Azure and Google Cloud models in the EU.
GLM 5.3 Flash
New Model
Cloud Provider
T-Cloud
Hosted on Telekom's sovereign infrastructure.
Server LocationGermany
Qwen 3.8 27B FP8
New Model
Cloud Provider
T-Cloud
Hosted on Telekom's sovereign infrastructure.
Server LocationGermany
DiffusionGemma 26B
PreviewPreview models are not covered by our SLA and may be removed with little or no notice.
Cloud Provider
T-Cloud
Hosted on Telekom's sovereign infrastructure.
Server LocationGermany
GLM 5.2
Cloud Provider
T-Cloud
Hosted on Telekom's sovereign infrastructure.
Server LocationGermany
GPT OSS 120B
Cloud Provider
T-Cloud
Hosted on Telekom's sovereign infrastructure.
Server LocationGermany
Claude Sonnet 5.5
Cloud Provider
Google Cloud Platform
Hosted by the third-party provider Google Cloud Platform.
Server LocationEurope
Gemini 3.8 Flash
Cloud Provider
Google Cloud Platform
Hosted by the third-party provider Google Cloud Platform.
Server LocationWorldwide
GPT Image 2
Cloud Provider
Microsoft Azure
Hosted by the third-party provider Microsoft Azure.
Server LocationSweden

Don't take our word for it. Read the docs.

Go as deep as you want: guides, integrations, and the full API reference. No sales call required.
LLM Serving

Getting started

Quickstart and authentication: your first API call in minutes.
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LLM Serving

Guides

Step-by-step walkthroughs: chat completions, streaming, embeddings, vision, audio, and more.
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LLM Serving

Integration

Connect LangChain, LlamaIndex, and coding plugins like Cline and OpenCode.
Explore
LLM Serving

API Reference

Endpoints, error codes, rate limits, and service levels. The full OpenAI-compatible spec.
Explore
SmartChat

Getting started

Start your first chat in minutes: sign in, pick a model, and ask.
Explore
SmartChat

User Guide

Run models side by side, organize chats, and collaborate in workspaces.
Explore
SmartChat

Admin Panel

Set up Spaces, manage roles, and sync Confluence or S3 for your team.
Explore
SmartChat

API Reference

RAG API plus global and local knowledge bases.
Explore

Have a question? Talk to our team.

Tell us about your use case, or dive into the technical docs to get started.

Opens an email to ai@t-systems.com