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Add T-Systems LLMHub as a provider #1626

@ashwinnair14

Description

@ashwinnair14

Request

Add T-Systems AI Foundation Services (LLMHub) as a new provider in models.dev.

Why

T-Systems LLMHub is a GDPR-compliant, EU-hosted LLM gateway run by Deutsche Telekom's enterprise IT subsidiary. It exposes 38 models — a mix of frontier proprietary models (OpenAI, Anthropic, Google, Mistral) and open-weight models hosted on T-Cloud Germany (Llama, Qwen, GPT-OSS, Teuken). It is widely used by European enterprises that need EU data residency for AI workloads, and currently has no entry in models.dev.

Provider details

Proposed model coverage (38 total)

Category Count
LLMs 30
Embeddings 5
Audio (Whisper) 2
Image generation 1

Status

Implementation submitted in PR #1383. The PR uses `extends` (README rule 3a) for 26 of 38 wrapper models, inheriting from canonical definitions in `providers/{anthropic,openai,google,mistral,llama,alibaba}/` with T-Systems pricing markup as local overrides. Validation passes (`bun run validate`) and `bun run compare:migrations` shows zero diff for the conversions.

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