Paradoxically their approach is to use less training data. HF are saying they have reverse engineered some of the capabilities of OpenAI’s o1 model, by using an approach called ‘Test-time compute scaling’ which OpenAI have acknowledged using, but not disclosed exactly how.

https://the-decoder.com/study-shows-test-time-compute-scaling-is-a-path-to-better-ai-systems/

Just as the investor funded AI companies think they have the shallowest of moats, and a chance to build revenue, no - once again Open Source is snapping at their heels. Someone is going to blink first in this race, and I suspect it will be the investor funded AI companies.