About Thinking Machines

The mission of Thinking Machines is to build AI that extends human will and judgment. We are training frontier models with Inkling, developing Tinker to let people make models their own, and crafting interfaces that broaden human-AI communication. We believe the future worth building is human, and we're hiring people who want to build it.

About the Role

As a Model Designer, you'll shape how our models work alongside people. Our mission is to build AI that extends human will and judgment, and this role is where that mission meets the actual texture of an interaction: how a model reads intent, when it acts on its own, when it asks, and whether the person comes away sharper than they started.

You'll hold several things in tension: pushing what our models can do, anticipating what someone is reaching for before they've fully said it, and keeping the person's judgment at the center of the work rather than quietly replacing it. We're looking for people who care deeply about design, technology, and the humans on the other side of the screen, and who want to help invent forms of human-AI collaboration that go well beyond typing into a box and waiting.

What You’ll Do

• Work closely with researchers to understand, predict, and