diff --git a/tests/e2e/llm_translation/test_chat_completions_regression_e2e.py b/tests/e2e/llm_translation/test_chat_completions_regression_e2e.py
index df50f86aab3..363b2a7e02e 100644
--- a/tests/e2e/llm_translation/test_chat_completions_regression_e2e.py
+++ b/tests/e2e/llm_translation/test_chat_completions_regression_e2e.py
@@ -46,7 +46,7 @@ pytestmark = pytest.mark.e2e
 COHERE_BACKEND = "cohere/command-r-08-2024"
 GEMINI_BACKEND = "gemini/gemini-2.5-flash"
 VERTEX_BACKEND: Final = "vertex_ai/gemini-2.5-flash"
-AZURE_OPENAI_BACKEND: Final = "azure/gpt-5.6-sol"
+AZURE_OPENAI_BACKEND: Final = "azure/gpt-5.4-nano"
 AZURE_OPENAI_API_VERSION: Final = "v1"
 AZURE_FOUNDRY_BACKEND: Final = "azure_ai/claude-haiku-4-5"
 OPENAI_BACKEND = "openai/gpt-5.6"
diff --git a/tests/e2e/llm_translation/test_responses_e2e.py b/tests/e2e/llm_translation/test_responses_e2e.py
index 5770bafe00e..259eafa9efe 100644
--- a/tests/e2e/llm_translation/test_responses_e2e.py
+++ b/tests/e2e/llm_translation/test_responses_e2e.py
@@ -40,7 +40,7 @@ class _OptionalResponsesBody(BaseModel):
 
 BEDROCK_CONVERSE_BACKEND = "bedrock/us.anthropic.claude-haiku-4-5-20251001-v1:0"
 VERTEX_BACKEND: Final = "vertex_ai/gemini-2.5-flash"
-AZURE_OPENAI_BACKEND: Final = "azure/gpt-5.6-sol"
+AZURE_OPENAI_BACKEND: Final = "azure/gpt-5.4-nano"
 AZURE_OPENAI_API_VERSION: Final = "v1"
 
 WEATHER_TOOL = ResponsesFunctionTool(