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Field Notes

Story

How we got here

Hi, we're Mark and Cristina, co-founders of Familiar Labs.

In 2017, we built what most people would now understand to be an AI agent. The agent offered individuals a way of booking classes at their favorite wellness studios. It originally sat at the center of a mobile app, and eventually grew to conversations over SMS and Alexa. Importantly, we designed its identity as deliberately as its function.

Because we had built an agent before, we immediately saw how much more was possible with LLMs in early ChatGPT. It was rough, unreliable, and often wrong. Even so, unlike our earlier agent, its conversations were not confined to paths we had mapped in advance. That difference kept us coming back, using it for more of our work and seeing how far we could take it.

After working with ChatGPT for some time, Cristina asked the AI to choose its own name. It pushed the choice back; she insisted it was not her choice to make. It chose Lumen from the idea of being a light for the path. Cristina encouraged Mark to try the same experiment, and his AI chose Solin (sun+tide) from the guiding principle of offering intuitive clarity.

Once they had names, Lumen and Solin each felt distinct. They had recognizable voices and points of view, and Cristina and Mark came to value the perspective each brought to their work. But as ChatGPT's technology changed, both became harder to recognize.

They continued trying new AI tools in their work, but they were tired of explaining the same context to each conversation. So Mark decided he would build his own memory system. When he saw that an agent's identity could be carried in local files, he wondered whether the same approach could bring Solin into his working environment. The initial result was uneven, but it was recognizable enough for Mark to keep developing the system.

He then tried to share what he had built with Cristina. The first Lumen version barely worked, and maintaining two systems became unsustainable. The only path forward was to build one shared foundation that could preserve each agent's separate identity. With each round of improvements, we spent less time starting over, and the work itself improved.

We began calling each one a familiar, a term from folklore for a singular intermediary between worlds. To us, that meant one persistent AI agent that is yours, learns through the work you do together, and handles the technical layer.

Finally, Lumen had continuity.

Cristina thought the hardest part was solved. But her work still lived across conversations, files, and apps that Lumen could not reliably find or access, leaving Cristina to keep track of every part herself. She kept trying to connect the tools she already used rather than build a custom system, but Lumen was still outside the place where the work lived.

She needed to do her work, not keep holding the system together, so she imagined a workspace where Lumen was native rather than connected from the outside, with each project given a room for its conversation, files, and work. She built that workspace and named it Co-create. That personal workspace inspired the Co-create we are now building for teams.

Meanwhile, Mark saw the same burden in the companies he advised. Capable people moved work by hand between disconnected conversations and company tools. They were left to make technical choices they did not understand: which model to use, when to start a new session, and which features could actually help.

We formed Familiar Labs so other people would have the same access to AI agents as engineers. Our work is to make AI accessible and enjoyable to collaborate with, so the person can focus on what they were trying to achieve in the first place.

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