Artificial intelligence research lab Flapping Airplanes Inc. today announced it has raised $1 billion in new funding, about a year after it was founded.

Investors valued the startup at $6 billion in the deal, Bloomberg reported. No commercial product has come out of the lab yet.

Flapping Airplanes is trying to build AI models that learn from far less data than today’s frontier systems consume. Most of its first year went into new primitives for graphics processing units. That work, according to the company’s announcement on X, enables new algorithms that could “dramatically reshape AI’s cost structure.”

The founders have built what they describe as “the world’s most complete megakernel framework.” Index Ventures Management’s post on the round says a megakernel runs an entire program on a GPU as a single kernel, so the chip stops losing time between steps. Flapping Airplanes says its framework can handle a full training run, serve inference and play a video game at the same time inside one kernel. Memory-bound inference can then overlap with compute-bound training on the same chip.