We build AI Sims

What an AI Sim is

A Sim is an AI persona built around one real mind: its knowledge, its voice and the way it reasons. You don't get a generic chatbot with a name pasted on. The Sim is grounded in a curated body of that person's own words and work, so it answers the way they would and says so when it doesn't know.

The flagship is Roger Sim AI, modelled on Federation architect Roger Keyserling. It opens on the Earth, the face fades in, and as the conversation moves the backdrop changes to match the topic. Cosmos, consciousness, truth, music, science and the rest. Replies can be read aloud.

What a custom Sim includes

• Knowledge corpus

  Your writing, talks, transcripts and documents organised into the Sim's memory, so answers come from you.

• Persona and voice

  How the Sim speaks: tone, phrases, what it will and won't say. Replies read aloud in the browser.

• Topic map

  A topic taxonomy like the 13-topic map behind Roger Sim, so the Sim knows what subject it is in and responds to it.

• Living visuals

  A face plus topic backdrops that change with the conversation. Your own images or video can be swapped in at any time.

• Truth grounding

  Built on the HumanCodex principle of truth first. The Sim separates fact from opinion and doesn't make things up to please you.

• Free hosting

  The interface runs on free static hosting. You own the repository.

Who it is for

• Authors and teachers who want students to be able to ask their work questions.
• Businesses that want a guide who knows the products as well as the founder does.
• Families and individuals who want a lasting, conversational record of a person's knowledge.