diff --git a/agent/usage_pricing.py b/agent/usage_pricing.py
index 2884381bf167..9825e4a27bd5 100644
--- a/agent/usage_pricing.py
+++ b/agent/usage_pricing.py
@@ -943,10 +943,13 @@ def _normalize_bedrock_model_name(model: str) -> str:
     """Normalize a Bedrock model id to its bare foundation-model form.
 
     Bedrock cross-region inference profiles prefix the foundation model id
-    with a region scope (``us.`` / ``global.`` / ``eu.`` / ``apac.`` / ...),
-    e.g. ``us.anthropic.claude-opus-4-7``.  The pricing table is keyed on the
-    bare ``anthropic.claude-*`` id, so the prefix must be stripped before the
-    lookup or every cross-region session prices as unknown.  Also normalizes
+    with a region scope (``us.`` / ``global.`` / ``eu.`` / ``apac.`` / ``au.``
+    / ...), e.g. ``us.anthropic.claude-opus-4-7`` or
+    ``au.anthropic.claude-sonnet-4-5-20250929-v1:0``.  The pricing table is
+    keyed on the bare ``anthropic.claude-*`` id, so the prefix must be
+    stripped before the lookup or every cross-region session prices as
+    unknown.  Note Asia-Pacific uses ``apac.`` (a bare ``ap.`` never matches
+    an ``apac.*`` id) and Australia/New Zealand use ``au.``.  Also normalizes
     dot-notation version numbers (``4.7`` → ``4-7``) and the documented
     trailing date, revision, and profile components (``-20250514-v1:0``).
     """
@@ -955,8 +958,9 @@ def _normalize_bedrock_model_name(model: str) -> str:
         "global.",
         "us.",
         "eu.",
-        "ap.",
         "apac.",
+        "ap.",
+        "au.",
         "jp.",
         "ca.",
         "sa.",
diff --git a/tests/agent/test_usage_pricing.py b/tests/agent/test_usage_pricing.py
index 9b82d2e2ad47..a1f853272bb4 100644
--- a/tests/agent/test_usage_pricing.py
+++ b/tests/agent/test_usage_pricing.py
@@ -386,16 +386,20 @@ def test_bedrock_current_gen_claude_rows_resolve():
 
 
 def test_bedrock_cross_region_profile_prefix_resolves_to_pricing():
-    """Cross-region inference profiles (us./global./eu. prefixes) must resolve
-    to the same pricing entry as the bare foundation-model id.  Without prefix
-    normalization, ``us.anthropic.claude-*`` sessions price as unknown.
+    """Cross-region inference profiles must resolve to the same pricing entry
+    as the bare foundation-model id.  Without prefix normalization a scoped
+    ``<region>.anthropic.claude-*`` session prices as unknown.
+
+    Asia-Pacific (``apac.``) and Australia (``au.``) are included because AWS
+    uses the full ``apac.`` prefix, not ``ap.`` — a bare ``ap.`` never matches
+    an ``apac.*`` id, so those geographies previously priced as unknown.
     """
     bedrock_url = "https://bedrock-runtime.us-east-1.amazonaws.com"
     bare = get_pricing_entry(
         "anthropic.claude-sonnet-4-5", provider="bedrock", base_url=bedrock_url
     )
     assert bare is not None
-    for prefix in ("us.", "global.", "eu."):
+    for prefix in ("us.", "global.", "eu.", "apac.", "au."):
         scoped = get_pricing_entry(
             f"{prefix}anthropic.claude-sonnet-4-5",
             provider="bedrock",