The First Open-Source
Self-Hosted AI Companion
Engage with Hasaji, your customized local companion. Haven is the first open-source, fully self-hosted AI companion system, bringing together interactive desktop overlays, local image generation, and offline Piper speech on your own hardware.
The Haven Architecture Suite
A synchronized network of local applications designed to host, render, and orchestrate secure AI companion systems.
Haven Card Studio
Standalone Android creator suite for SillyTavern V2/V3 character cards. Features PNG Base64 chunk parsing, adaptive tablet split-pane studio layout, AI assist drafting, SD portrait generator, and 1-tap deployment to Haven Server.
Interactive Companion
The companion UI floats natively on your desktop. Features automated screen capturing, monitor-aware bounds mapping, and smooth status-pulsing borders for an interactive overlay experience.
Haven Server Core
A hardened C# .NET 10 orchestrator. Handles OAuth identity mapping, JWT-secured WebSocket connections, rate-limiting, and prompt-injection defense mechanisms while logging actions in a local database.
SD Portrait Engine
Generates custom portraits dynamically. Integrates FaceDetectorYN and GFPGAN face restoration pipelines in ONNX to automatically clean, align, and reconstruct lifelike eyes and facial details.
Private Support Room
Talk freely about stress, anxiety, or goals. Because Haven runs 100% locally and offline, you have absolute confidentiality. Preloaded with specialized companions like Dr. Clara and Dr. Marcus for CBT and mindfulness coaching.
Haven Chat v3.0.3 & SD GGUF
Hosted under the official Hugging Face organization (haven-ai-companion). Features our flagship Haven Chat v3.0.3 fine-tuned roleplay engine with DPO preference optimization, custom identity alignment, and zero system token leakage.
Accompanied by our customized Gemma 4 e4b merged turbo model (IQ4_XS) for low-latency CPU execution, and DreamShaper 8 LCM (SD GGUF) for real-time 4-step local portrait generation.