feat(models): add anthropic/claude-opus-5 to OpenRouter and Nous Portal catalogs

Anthropic released Claude Opus 5 (+ -fast variant) — both are live on
OpenRouter and the Nous Portal /models endpoint (verified against both
live APIs). Opus 4.8 entries are kept.

- hermes_cli/models.py: opus-5 + opus-5-fast in OPENROUTER_MODELS;
  opus-5 in _PROVIDER_MODELS[nous] (Portal serves both, curated list
  carries the base model like the rest of the Nous Anthropic block).
  Ordering: below fable-5 flagship, above opus-4.8.
- agent/model_metadata.py: claude-opus-5 -> 1M context (matches live
  OpenRouter metadata).
- agent/reasoning_timeouts.py: claude-opus-5 -> 240s stale-timeout
  floor (same as the opus-4.x thinking family).
- website/static/api/model-catalog.json: regenerated via
  scripts/build_model_catalog.py.

Both providers bill via official_models_api (live pricing), so no
_OFFICIAL_DOCS_PRICING snapshot entry is needed for these routes.

agent/model_metadata.py

@@ -215,6 +215,7 @@ DEFAULT_CONTEXT_LENGTHS = {
     # OpenRouter-prefixed models resolve via OpenRouter live API or models.dev.
     "claude-fable-5": 1000000,
     "claude-fable": 1000000,
+    "claude-opus-5": 1000000,
     "claude-sonnet-5": 1000000,
     "claude-opus-4-8": 1000000,
     "claude-opus-4.8": 1000000,

agent/reasoning_timeouts.py

@@ -102,6 +102,7 @@ _REASONING_STALE_TIMEOUT_FLOORS: tuple[tuple[str, int], ...] = (
     # ``claude-opus-4`` so non-thinking Claude 3.x or future
     # non-reasoning Claude variants don't match.
     ("claude-opus-4", 240),
+    ("claude-opus-5", 240),
     ("claude-sonnet-5", 180),
     ("claude-sonnet-4.5", 180),
     ("claude-sonnet-4.6", 180),

hermes_cli/models.py

@@ -41,6 +41,8 @@ def _urlopen_model_catalog_request(req: urllib.request.Request, *, timeout: floa
 OPENROUTER_MODELS: list[tuple[str, str]] = [
     # Anthropic
     ("anthropic/claude-fable-5",               ""),
+    ("anthropic/claude-opus-5",                ""),
+    ("anthropic/claude-opus-5-fast",           "2x price, higher output speed"),
     ("anthropic/claude-opus-4.8",              ""),
     ("anthropic/claude-opus-4.8-fast",         "2x price, higher output speed"),
     ("anthropic/claude-sonnet-5",              ""),
@@ -192,6 +194,7 @@ _PROVIDER_MODELS: dict[str, list[str]] = {
     "nous": [
         # Anthropic
         "anthropic/claude-fable-5",
+        "anthropic/claude-opus-5",
         "anthropic/claude-opus-4.8",
         "anthropic/claude-sonnet-5",
         "anthropic/claude-haiku-4.5",

website/static/api/model-catalog.json

@@ -1,6 +1,6 @@
 {
   "version": 1,
-  "updated_at": "2026-07-20T08:23:45Z",
+  "updated_at": "2026-07-24T19:06:06Z",
   "metadata": {
     "source": "hermes-agent repo",
     "docs": "https://hermes-agent.nousresearch.com/docs/reference/model-catalog"
@@ -16,6 +16,14 @@
           "id": "anthropic/claude-fable-5",
           "description": ""
         },
+        {
+          "id": "anthropic/claude-opus-5",
+          "description": ""
+        },
+        {
+          "id": "anthropic/claude-opus-5-fast",
+          "description": "2x price, higher output speed"
+        },
         {
           "id": "anthropic/claude-opus-4.8",
           "description": ""
@@ -180,6 +188,9 @@
         {
           "id": "anthropic/claude-fable-5"
         },
+        {
+          "id": "anthropic/claude-opus-5"
+        },
         {
           "id": "anthropic/claude-opus-4.8"
         },