Doing More With Less.
Yesterday’s frontier becomes cheap quickly; today’s frontier keeps getting dearer.
This volume describes the field as of October 2026. Claims are marked established (replicated or long-standing), reported (from a single lab or report, not independently reproduced) or contested (actively disputed). Two measured trends compound. Algorithmic progress: Ho and colleagues (NeurIPS 2024) estimated that the compute needed to reach a fixed pretraining performance halved about every 8 months over 2012–2023 (90% interval 2–22 months; established as an estimate with wide uncertainty). Price of inference: Epoch AI found the price of reaching a fixed benchmark score fell between 9× and 900× a year depending on the threshold, median about 50× (reported, with the fastest declines the most recent and least likely to persist).
Hardware adds its own improvement (plate XIII.1), and the volumes on efficient inference (XXIII–XXIV) explain the mechanisms. The workshop compounds the chosen yearly rates over the chosen number of years to show the cost of a fixed capability falling, against the cost of each year’s frontier run rising.
Below: relative cost of a fixed capability and of the frontier training run over time, on a logarithmic scale.
- State the measured efficiency trends.
- Compound rates over time.
- Separate fixed-capability cost from frontier cost.
- Read the uncertainty in the rates.
Cheaper capability, dearer frontier
Halving compute every 8 months is about 2.8× a year: over three years, a fixed pretraining loss needs about 23 times less compute. Inference prices for a fixed score fell faster still — at the 50× median, three years would be a 125 thousand-fold fall, at the 9× low end 729-fold; these rates are measured over a short, unusual period and the authors themselves expect them to slow. Either way, last year’s frontier capability becomes cheap quickly, which is why small open models keep matching benchmarks that were frontier results a year or two earlier.
The frontier run itself gets more expensive at the same time, because developers spend the efficiency gains on more capability rather than on cheaper copies of the old one; Cottier and colleagues estimated frontier training costs growing about 2–3× a year (reported). Both statements are true together: what a model can do for a given price rises steeply, and the price of the best model rises too. Forecasts that extrapolate either trend alone mislead.
Terms
- Algorithmic progress
- Less compute needed for the same result through better methods.
- Price of capability
- The cost of reaching a fixed level of performance.
- Frontier run
- The largest training run of its time.
- Compounding
- Multiplying a yearly rate over several years.
Sources
- Ho et al., “Algorithmic Progress in Language Models”, NeurIPS 2024.
- Epoch AI, “LLM inference price trends”, 2025.
- Cottier et al., “The rising costs of training frontier AI models”, arXiv:2405.21015, 2024.