ModelRefs / Chinchilla Scaling — AI Glossary

Chinchilla Scaling — AI Glossary

DeepMind's 2022 finding that optimal training uses ~20 tokens per parameter, shifting the field toward smaller, better-trained models.

Overview

Hoffmann et al. showed that Gopher (280B params, 300B tokens) was undertrained: equal compute spent on 70B params trained on 1.4T tokens ('Chinchilla') matched or exceeded Gopher on nearly all tasks. This revised OpenAI's 2020 scaling laws and prompted Llama, Mistral, and Phi series designs.

Reference details

Topicarchitecture
Also known asChinchilla optimal, compute-optimal
Last reviewed2026-06-24

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Frequently asked questions

What is Chinchilla Scaling?

DeepMind's 2022 finding that optimal training uses ~20 tokens per parameter, shifting the field toward smaller, better-trained models.

Is Chinchilla Scaling the same as Chinchilla optimal?

Yes — Chinchilla optimal, compute-optimal are common aliases for Chinchilla Scaling.

What concepts are related to Chinchilla Scaling?

Closely related concepts include scaling law, neural scaling, pretraining data.