Local AI character chat

A private character-chat world on your Windows PC

Murmur Sphere brings characters, Personas, conversations, and a local AI model into one friendly desktop app. Your private chat content stays on your computer.

The simple version

What local AI character chat means

Instead of sending each message to a hosted chat service, Murmur Sphere asks an AI model running through Ollama on your computer. The app stores your characters, Personas, conversations, and recovery information locally.

Visiting this website, downloading Murmur Sphere or a model, checking for updates, sending email, and choosing creator support are separate online actions. The desktop app does not silently switch to an online AI.

Local conversationSynthetic capture
Murmur Sphere conversation workspace using a synthetic character and a local model.
A character conversation powered by the model running on this computer.

How it works

Four pieces, one private workspace

01

A character

Create one in the app or import a supported character card, then review what it contains before saving.

02

An optional Persona

Choose the context you want the character to know about you. Leave it empty when you do not need it.

03

A local model

Ollama runs the compatible AI model separately. Wait until the model status at the top says Ready.

Before your first message

What to expect from an early alpha

  • Murmur Sphere is free and does not require an account.
  • Ollama and the model are installed separately and use your computer's storage and memory.
  • Windows may warn because the current installer is not code-signed.
  • AI output can be wrong, surprising, or inappropriate, so review it before relying on or sharing it.