Extra computing power an AI uses while making an answer.
TTC is like grabbing extra scratch paper on a math test. You did not get smarter, but you stopped guessing and worked it out.
You see it in hard reasoning tasks. You also see it in code and math. More compute can make answers steadier. It also takes more time and money.
Reasoning effort
Reasoning effort often controls how much extra thinking the model uses.
Inference
TTC happens during inference, not during training.
Reasoning-model
A reasoning model can spend more compute at answer time for a steadier answer.
Compute-race
If every model thinks longer, the compute-race gets hotter.