diff --git a/pydantic_ai_slim/pydantic_ai/models/__init__.py b/pydantic_ai_slim/pydantic_ai/models/__init__.py
index 14d3a45284..6fd0a3c793 100644
--- a/pydantic_ai_slim/pydantic_ai/models/__init__.py
+++ b/pydantic_ai_slim/pydantic_ai/models/__init__.py
@@ -217,6 +217,9 @@
         'heroku:claude-3-7-sonnet',
         'heroku:claude-4-sonnet',
         'heroku:claude-3-haiku',
+        'heroku:gpt-oss-120b',
+        'heroku:nova-lite',
+        'heroku:nova-pro',
         'huggingface:Qwen/QwQ-32B',
         'huggingface:Qwen/Qwen2.5-72B-Instruct',
         'huggingface:Qwen/Qwen3-235B-A22B',
diff --git a/tests/models/cassettes/test_model_names/test_known_model_names.yaml b/tests/models/cassettes/test_model_names/test_known_model_names.yaml
index 4fc94b1460..e66c3747bd 100644
--- a/tests/models/cassettes/test_model_names/test_known_model_names.yaml
+++ b/tests/models/cassettes/test_model_names/test_known_model_names.yaml
@@ -15,7 +15,7 @@ interactions:
   response:
     headers:
       content-length:
-      - '550'
+      - '760'
       content-security-policy:
       - default-src 'none'; frame-ancestors 'none'
       content-type:
@@ -56,6 +56,23 @@ interactions:
       - us
       type:
       - text-to-embedding
+    - model_id: gpt-oss-120b
+      regions:
+      - us
+      type:
+      - text-to-text
+    - model_id: nova-lite
+      regions:
+      - eu
+      - us
+      type:
+      - text-to-text
+    - model_id: nova-pro
+      regions:
+      - eu
+      - us
+      type:
+      - text-to-text
     - model_id: stable-image-ultra
       regions:
       - us