Method isSmallFastModel

intercept/messages/base.go:203–205

IsSmallFastModel checks if the model is a small/fast model (Haiku 3.5). These models are optimized for tasks like code autocomplete and other small, quick operations. See `ANTHROPIC_SMALL_FAST_MODEL`: https://docs.anthropic.com/en/docs/claude-code/settings#environment-variables https://docs.claude.c

()

// See `ANTHROPIC_SMALL_FAST_MODEL`: https://docs.anthropic.com/en/docs/claude-code/settings#environment-variables
// https://docs.claude.com/en/docs/claude-code/costs#background-token-usage
func (i *interceptionBase) isSmallFastModel() bool {
	return strings.Contains(i.reqPayload.model(), "haiku")
}

func (i *interceptionBase) newMessagesService(ctx context.Context, opts ...option.RequestOption) (anthropic.MessageService, error) {
	// BYOK with access token uses Authorization: Bearer.