For convenience during development and testing, we offer ”-latest ” aliases for our models (e.g., claude-3-5-sonnet-latest ). These aliases automatically point to the most recent snapshot of a given model. While useful for experimentation, we recommend using specific model versions (e.g., claude-3-5-sonnet-20241022 ) in production applications to ensure consistent behavior. When we release new model snapshots, we’ll migrate the -latest alias to point to the new version (typically within a week of the new release). The -latest alias is subject to the same rate limits and pricing as the underlying model version it references.