Unverified80% confidenceFactExact time
The computational gap between pre-training and fine-tuning can be thousands of times, with pre-training consuming thousands of GPU hours while fine-tuning takes hours or minutes
1
Sources
80%
Confidence
Long-term
Relevance
8/2/2026
First Seen
Sources
Training a 1.3B Parameter LLM from Scratch: Complete Workflow and Core Challenges
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