Chris Alexiuk has a simple rule about open source AI: If you believe in it, be loud about it.

“We should be shouting about this technology from the rooftops,” said Alexiuk, a Toronto-based senior product research engineer in deep learning at NVIDIA who specializes in making open large language models (LLMs) practical for working developers.

Alexiuk’s preferred “rooftop” is YouTube , where he’s built a following teaching curious thousands how to build, fine-tune, evaluate and ship production LLM applications and agents.

“I think the people who will most help us understand how to build and apply AI likely haven’t even heard of it yet,” he said.…