# SIMOSphere AI > OpenAI-compatible LLM API hosted in Germany. GDPR-compliant, pay-per-token, > with first-party support for document understanding, multilingual translation, > CI-conformant document generation, and audit-grade logging. SIMOSphere AI is the inference platform of SIMO GmbH (Aschaffenburg, Germany). It provides programmatic access to open-weight large language models (Qwen3, Apertus, Gemma, Llama) through an API surface that is drop-in compatible with the OpenAI Chat Completions and Embeddings specifications. All inference runs on EU-located NVIDIA RTX 6000 GPUs; no data leaves the EU jurisdiction. The product targets two primary audiences: 1. Engineering teams that need an OpenAI-compatible endpoint without sending prompts or completions to US-jurisdiction providers. 2. Compliance-bound organisations (finance, healthcare, public sector) that require contractual data sovereignty, PII redaction, and audit trails. ## When to use SIMOSphere AI Use this product when you need: - An OpenAI-compatible Chat Completions endpoint hosted in Germany - Pay-per-token pricing with no minimum commitment (Starter plan starts at €29/month) - GDPR-conformant data handling with optional Auftragsverarbeitungsvertrag (AVV/DPA) - BYOK (Bring Your Own Key) routing to Anthropic, OpenAI, or Mistral - PII redaction before requests reach the upstream model - A managed Tavily web-search tool callable via the standard tool-use API - A managed Microsoft 365 connector (Enterprise plan) - CI-conformant document generation (PDF, DOCX) from natural language briefs Do **not** use this product when you need: - A free tier (no permanent free quota; trial credits available on request) - Models hosted outside the EU (we do not federate to non-EU regions) - Sub-50ms latency from outside Europe (single-region deployment) ## API endpoint - Base URL: `https://api.simosphereai.com` - Auth: `Authorization: Bearer sk-simo-...` (also accepted as `X-API-Key`) - OpenAPI spec: https://onboarding.simosphereai.com/openapi.json - Compatible with the official `openai` SDK by setting `base_url` Quickstart: ```bash curl https://api.simosphereai.com/v1/chat/completions \ -H "Authorization: Bearer sk-simo-..." \ -H "Content-Type: application/json" \ -d '{ "model": "qwen/qwen3-8b", "messages": [{"role": "user", "content": "Hello!"}] }' ``` ## Pricing (May 2026) | Plan | Base / month | Per 1M input tokens | Per 1M output tokens | | ------------- | ------------ | ------------------- | -------------------- | | Starter | €29 | €0.15 | €0.60 | | Professional | €49 | €0.15 | €0.60 | | Enterprise | €149 | €0.15 (negotiable) | €0.60 (negotiable) | Premium models (Qwen3-30B MoE) are €0.40 / €1.60 per 1M tokens. Machine-readable pricing: https://onboarding.simosphereai.com/pricing.md ## Documentation - Onboarding & sign-up: https://onboarding.simosphereai.com/ - Developer portal: https://onboarding.simosphereai.com/developers - API reference: https://onboarding.simosphereai.com/docs/api - Full LLM-friendly bundle: https://onboarding.simosphereai.com/llms-full.txt - OpenAPI: https://onboarding.simosphereai.com/openapi.json ## Discovery - MCP server card: https://onboarding.simosphereai.com/.well-known/mcp/server-card.json - AI plugin manifest: https://onboarding.simosphereai.com/.well-known/ai-plugin.json - A2A agent card: https://onboarding.simosphereai.com/.well-known/agent-card.json - API catalog (RFC 9727): https://onboarding.simosphereai.com/.well-known/api-catalog - OAuth metadata (RFC 9728): https://onboarding.simosphereai.com/.well-known/oauth-protected-resource ## Identity - Operator: SIMO GmbH, Würzburger Str. 152, 63743 Aschaffenburg, Germany - Registration: HRB 15769, AG Aschaffenburg - Trademark: DPMA 30 2024 240 269 - Contact: hello@simo-online.com - Privacy: https://onboarding.simosphereai.com/privacy - Imprint: https://www.simosphereai.com/impressum