Chapter 03 · Compute Trajectory
Lumen Silicon Briefing — Q4 / 2025
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// the takeaway
Frontier model training has crossed
10 000×
the compute budget of five years ago — and the next jump arrives in months, not years.
Training compute per generation
PetaFLOP·days, log scale
100M
10M
1M
100K
10K
18K
110K
640K
3.2M
17M
92M
2020
2021
2022
2023
2024
2025
Frontier generation
Prior generations
Trend (log)