KIEFER

Open models, datasets, and demos from KIEFER SA — Greece's AI infrastructure company building the next generation of language, speech, and agentic systems for Europe. We publish open-weight models, fine-tuning recipes, and evaluation benchmarks designed for production — from Apple Silicon edge deployment to enterprise inference on NVIDIA GPU clusters.

🧠 Open-Source Models

KIEFER publishes open-weight models that lead Greek-language AI — Sophea K1, a 28B LLM that tops GreekMMLU at 83.34%, and Sophea Canary ASR, a bilingual Greek + English speech model reaching 2.90% WER on Greek, with a native Apple Silicon MLX build. Every model ships with open weights, reproducible recipes, and permissive licensing (MIT / CC-BY-4.0) — browse them all in the Models tab below.

🌐 The Sophea Ecosystem

KIEFER SA's integrated suite of sovereign AI products — language models, speech intelligence, robotics, and energy infrastructure. Every product is built on open-weight Sophea models and served on KIEFER's sovereign European GPU infrastructure.

⚡ Infrastructure

All Sophea models are developed and served on KIEFER's sovereign AI infrastructure — NVIDIA GPU clusters deployed in Greece, designed for data-residency compliance and low-latency European inference. Our roadmap targets 1,000+ GPU capacity to support the full Sophea model family at enterprise scale.

📎 Resources

• 🌐 Website — kiefer.gr
• 🦉 Try Sophea K1 — sophea.ai
• 📄 Licenses — MIT (Sophea K1) · CC-BY-4.0 (Sophea ASR models)
• 🤝 Enterprise & partnerships — info@kiefer.gr · info@sophea.ai