diff --git a/hermes_cli/models.py b/hermes_cli/models.py
index cf3eb40edaaf..b1c948b98d9c 100644
--- a/hermes_cli/models.py
+++ b/hermes_cli/models.py
@@ -37,6 +37,7 @@
     ("anthropic/claude-opus-4.8",              ""),
     ("anthropic/claude-opus-4.8-fast",         "2x price, higher output speed"),
     ("anthropic/claude-sonnet-4.6",            ""),
+    ("anthropic/claude-sonnet-5",              ""),
     ("anthropic/claude-haiku-4.5",             ""),
     # OpenAI
     ("openai/gpt-5.5",                         ""),
@@ -178,6 +179,7 @@ def _xai_curated_models() -> list[str]:
         # Anthropic
         "anthropic/claude-opus-4.8",
         "anthropic/claude-sonnet-4.6",
+        "anthropic/claude-sonnet-5",
         "anthropic/claude-haiku-4.5",
         # OpenAI
         "openai/gpt-5.5",
@@ -252,6 +254,7 @@ def _xai_curated_models() -> list[str]:
         "gpt-4o",
         "gpt-4o-mini",
         "claude-sonnet-4.6",
+        "claude-sonnet-5",
         "claude-sonnet-4",
         "claude-sonnet-4.5",
         "claude-haiku-4.5",
@@ -339,6 +342,7 @@ def _xai_curated_models() -> list[str]:
         "MiniMax-M2",
     ],
     "anthropic": [
+        "claude-sonnet-5",
         "claude-fable-5",
         "claude-opus-4-8",
         "claude-opus-4-7",
@@ -377,6 +381,7 @@ def _xai_curated_models() -> list[str]:
         "moonshotai/Kimi-K2.5",
         "google/gemini-3.1-flash-lite-preview",
         "anthropic/claude-sonnet-4.6",
+        "anthropic/claude-sonnet-5",
         "openai/gpt-5.4",
     ],
     "opencode-zen": [
@@ -400,6 +405,7 @@ def _xai_curated_models() -> list[str]:
         "gpt-5-codex",
         "gpt-5-nano",
         "claude-fable-5",
+        "claude-sonnet-5",
         "claude-opus-4-8",
         "claude-opus-4-7",
         "claude-opus-4-6",
@@ -498,6 +504,7 @@ def _xai_curated_models() -> list[str]:
     # prefers live discovery via ListFoundationModels + ListInferenceProfiles.
     # Use inference profile IDs (us.*) since most models require them.
     "bedrock": [
+        "us.anthropic.claude-sonnet-5",
         "us.anthropic.claude-sonnet-4-6",
         "us.anthropic.claude-opus-4-6-v1",
         "us.anthropic.claude-haiku-4-5-20251001-v1:0",
diff --git a/plugins/model-providers/gmi/__init__.py b/plugins/model-providers/gmi/__init__.py
index fb0220708038..a273bddb9cbd 100644
--- a/plugins/model-providers/gmi/__init__.py
+++ b/plugins/model-providers/gmi/__init__.py
@@ -24,6 +24,7 @@
         "moonshotai/Kimi-K2.5",
         "google/gemini-3.1-flash-lite-preview",
         "anthropic/claude-sonnet-4.6",
+        "anthropic/claude-sonnet-5",
         "openai/gpt-5.4",
     ),
 )
diff --git a/tests/hermes_cli/test_models.py b/tests/hermes_cli/test_models.py
index 2f087635662d..ef13c5f5326d 100644
--- a/tests/hermes_cli/test_models.py
+++ b/tests/hermes_cli/test_models.py
@@ -969,3 +969,20 @@ def test_real_catalog_model_unaffected(self):
         r = validate_requested_model("gpt-5.5", "openai-codex")
         assert r["accepted"] is True
         assert r["recognized"] is True
+
+
+class TestClaudeSonnet5InCuratedLists:
+    """Regression: Claude Sonnet 5 must appear in curated model lists (#55846)."""
+
+    def test_anthropic_native_list_includes_sonnet_5(self):
+        from hermes_cli.models import _PROVIDER_MODELS
+        assert "claude-sonnet-5" in _PROVIDER_MODELS["anthropic"]
+
+    def test_openrouter_fallback_includes_sonnet_5(self):
+        from hermes_cli.models import OPENROUTER_MODELS
+        ids = [mid for mid, _ in OPENROUTER_MODELS]
+        assert "anthropic/claude-sonnet-5" in ids
+
+    def test_nous_list_includes_sonnet_5(self):
+        from hermes_cli.models import _PROVIDER_MODELS
+        assert "anthropic/claude-sonnet-5" in _PROVIDER_MODELS["nous"]
diff --git a/website/static/api/model-catalog.json b/website/static/api/model-catalog.json
index 4b9597e8787b..f5c05b9cc7cf 100644
--- a/website/static/api/model-catalog.json
+++ b/website/static/api/model-catalog.json
@@ -1,6 +1,6 @@
 {
   "version": 1,
-  "updated_at": "2026-06-16T18:04:33Z",
+  "updated_at": "2026-06-30T19:42:05Z",
   "metadata": {
     "source": "hermes-agent repo",
     "docs": "https://hermes-agent.nousresearch.com/docs/reference/model-catalog"
@@ -24,6 +24,10 @@
           "id": "anthropic/claude-sonnet-4.6",
           "description": ""
         },
+        {
+          "id": "anthropic/claude-sonnet-5",
+          "description": ""
+        },
         {
           "id": "anthropic/claude-haiku-4.5",
           "description": ""
@@ -158,6 +162,9 @@
         {
           "id": "anthropic/claude-sonnet-4.6"
         },
+        {
+          "id": "anthropic/claude-sonnet-5"
+        },
         {
           "id": "anthropic/claude-haiku-4.5"
         },