Eternis

Building for a world with capable AI

While power over AGI and resources consolidates into the hands of a few, we're building for a different future. One where billions can govern powerful multi-agent systems with access to capital, physical resources, and real-world agency.

Privacy-preserving personal AI

Our current focus is on privacy-first personal AI that enable users to leverage powerful AI while keeping personal data truly private. Our models perform on-device anonymization, replacing personally identifiable information (PII) with semantically similar alternatives before queries ever leave your device.

Our models

Anonymizer series - Small language models (0.6B, 1.7B, 4B) trained for surgical PII replacement:

• Detect and replace names, companies, financial data, addresses, and other sensitive information
• Maintain query context and semantic meaning
• Available in multiple formats: PyTorch, GGUF, MLX (iOS-optimized)
• Trained using reinforcement learning with GPT-4.1 as judge

Applications

Our models power Silo, an iOS app that provides ChatGPT/Claude-quality responses while keeping your sensitive, personal information on-device.

Learn more: eternis.ai
Contact: contact@eternis.ai