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utsuwa.ai
What it is
Utsuwa is a free, open-source AI companion app built around a 3D VRM avatar, voice, memory, and a relationship system. It supports models from OpenAI, Anthropic, Google, DeepSeek, and xAI, along with OpenAI-compatible endpoints, Ollama, and LM Studio. Users can load their own VRM avatars. Local embeddings support semantic recall, and users can browse, search, add, or delete stored memories. Voice options include hosted and local services. The listed capabilities include voice conversations, persistent memory, proactive messages, and image or video chat. Utsuwa can run entirely on a user's machine with local models and voice services. Its maker says there are no accounts, analytics, ads, or tracking cookies, and conversations, memories, and settings stay on the device. In the hosted web app, cloud-provider requests may be relayed through Utsuwa servers; the maker says those servers do not store messages or API keys or log conversation content. Desktop messages go directly to the selected provider, but the desktop app is in beta and its builds are not code-signed. The maker states that Utsuwa is intended for adults aged 18 and over.
Spec sheet
- Product
- Utsuwa is an open-source AI companion app with a 3D VRM avatar, voice, memory, and a relationship system.Read 5 Oct 2026 · docs.utsuwa.ai
- Platforms
- The browser app runs on desktop and mobile, while desktop builds are available for macOS, Windows, and Linux.Read 5 Oct 2026 · docs.utsuwa.ai
- Integrations
- The docs describe MCP tool connections including Home Assistant, Brave Search, and GitHub.Read 5 Oct 2026 · docs.utsuwa.ai
- Privacy
- The maker says there are no accounts, analytics, ads, or tracking cookies, and conversations, memories, and settings are stored on the user's device.Read 5 Oct 2026 · utsuwa.ai
- Support
- The maker directs users to GitHub as the fastest way to reach the team.Read 5 Oct 2026 · utsuwa.ai
- Age
- The maker states that Utsuwa is intended for adults aged 18 and over.Read 5 Oct 2026 · utsuwa.ai
- Avatars
- Users can load their own VRM avatar models.Read 5 Oct 2026 · utsuwa.ai
- Desktop data routing
- In the desktop app, messages go directly from the device to the selected provider without passing through Utsuwa's servers.Read 5 Oct 2026 · utsuwa.ai
- Desktop status
- The desktop app is in beta, and its builds are not code-signed yet.Read 5 Oct 2026 · docs.utsuwa.ai
- Memory
- Local embeddings support semantic recall of conversations, and users can browse, search, add, and delete memories.Read 5 Oct 2026 · docs.utsuwa.ai
- Models
- It supports OpenAI, Anthropic, Google, DeepSeek, xAI, OpenAI-compatible endpoints, Ollama, and LM Studio.Read 5 Oct 2026 · docs.utsuwa.ai
- Offline use
- Utsuwa can run entirely on a user's machine with local models and local voice services.Read 5 Oct 2026 · utsuwa.ai
- Voice
- Voice options include ElevenLabs, OpenAI TTS, local TTS, OmniVoice, local Whisper, Groq, OpenAI, and browser speech recognition.Read 5 Oct 2026 · docs.utsuwa.ai
- Web data routing
- In the hosted web app, cloud provider requests may be relayed through Utsuwa's servers, which the maker says do not store messages or API keys or log conversation content.Read 5 Oct 2026 · utsuwa.ai
Plans and prices
Free Free No subscription · No paywalled features · Bring your own model keys or use a local model Read 5 Oct 2026 · utsuwa.ai
Strong points and limits
Strong points
- Free, with no paywalled features.
- Supports local models and local voice services.
- Users can manage stored memories.
- Desktop messages go directly to the selected provider.
Limits
- Desktop app is in beta.
- Desktop builds are not code-signed.
- Hosted web requests may pass through Utsuwa servers.
Who it suits
Utsuwa suits adults aged 18 and over who want an AI companion with avatar, voice, and memory features. Users seeking local operation can run it with local models and voice services.
Verdict
Utsuwa offers a free companion app with local operation, memory management, and multiple model and voice options. Consider the desktop beta status and the different request routing in the hosted web and desktop apps.
Where Specifiction places it
- AI Companion Apps#29 of 357.5
