diff --git a/models.md b/models.md
index 7d574cb..40d43ce 100644
--- a/models.md
+++ b/models.md
@@ -30,7 +30,9 @@ provider — your own cost is your monthly allowance, not per-token billing).
 
 Some models also have a discounted cached-input rate (when a prompt is reused
 and doesn't need to be re-read) — see the `code/litellm` config for the exact
-numbers.
+numbers. Pricing here mirrors the `model_info` in the LiteLLM config
+(`code/litellm/config.yaml`), which is the authoritative source — the two are
+kept in sync.
 
 > **Note:** the three Tinfoil models currently use their bare names (no
 > `tinfoil/` prefix). They'll be renamed to `tinfoil/deepseek-v4-1-flash` and so