Thunderbolt, an open-source AI client by Thunderbird, is engineered for on-premise deployment across various platforms including web, iOS, Android, Mac, Linux, and Windows. The project's core philosophy revolves around giving users control over their AI models and data, thereby mitigating vendor lock-in. It supports integration with frontier, local, and on-premise models, and is compatible with OpenAI-compatible model providers. While still in active development and undergoing a security audit, Thunderbolt is being prepared for enterprise production readiness. It currently targets enterprise customers and encourages self-hosting via Docker Compose or Kubernetes. The latest available release is a nightly build, v0.1.96-nightly.20260528.
Featured on AI Radar: Thunderbolt: An Open-Source, Cross-Platform AI Client for On-Premise Deployment