Generalist AI Releases GEN-1.5: A Robot Foundation Model That Learns New Tasks From One 3–12 Second Demo

AI Releases GEN-1.5: A Robot Foundation Model That Learns New Tasks From One 3–12 Second Demo">

Generalist AI has released GEN-1.5 , a robot foundation model that learns a new physical task from a single demonstration. Drop 3–12 seconds of sensorimotor data into its 30-second context window, and the robot performs the task. No gradient updates, no fine-tuning, no task-specific programming. Across 10 diverse manipulation tasks, this one-shot in-context prompting averaged 59% success (±10% std. dev.) straight from the pretrained model. Ten gradient steps on five minutes of data per task raised that to 83% (±9%). Generalist calls the mechanism physical prompting , and says it was never trained for: no architectural changes, no meta-learning loop , no auxiliary objectives. It emerged from over eight months of continuous pretraining on physical interaction data. The tasks are simple and short-horizon, and the company says so plainly. But this is the first model its team knows of where one-shot learning of physical skills has emerged at scale.

Not yet — this is a research release. There are no public weights, no API, no pricing page and no self-serve product. Generalist AI runs GEN-1.5 on its own fleet and data engine. Anyone who wants it today goes through a direct partnership.

GEN-1.5 is a large multimodal model that takes video, sensor, language and proprioceptive inputs, holds 30 seconds of memory, and emits 100 Hz action trajectories. It has been pretraining continuously for over eight months on physical interaction data captured in homes, warehouses and factories.

The main mechanism is physical prompting . A sensorimotor example — sensor streams plus the action trajectory — is inserted into the 30-second context window through a drag-and-drop interface. The remainder of the window holds rolling observations. The model then performs the task immediately, with zero gradient steps and no fine-tuning.

Crucially, none of this was designed in. Generalist states there were no architectural changes to promote in-context learning, no meta-learning loop , and no auxiliary objectives encouraging improvisation. The capability emerged from pretraining scale, the same way one-shot prompting emerged in GPT-3 .

Across 10 diverse tasks, one-shot in-context prompting averaged 59% success (±10% std. dev.) from the pretrained model, with no training at all. Ten gradient steps on five minutes of data per task — roughly 50 demonstrations — raised that to 83% (±9%) . In the extreme case, one gradient step on one minute of data reached 66.5% on a held-out task, with no adaptation-specific hyperparameter sweep.