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fix(proxy): only create Router when models or search_tools exist #20661

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Merged
ishaan-jaff merged 1 commit into from
Feb 7, 2026
Merged

fix(proxy): only create Router when models or search_tools exist #20661

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25 changes: 13 additions & 12 deletions litellm/proxy/proxy_server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3249,18 +3249,19 @@ async def _update_llm_router(
_model_list: list = self.decrypt_model_list_from_db(
new_models=models_list
)
# Create router even with empty model list to support search_tools
# Router can function with model_list=[] and only search_tools
verbose_proxy_logger.debug(f"_model_list: {_model_list}")
llm_router = litellm.Router(
model_list=_model_list,
router_general_settings=RouterGeneralSettings(
async_only_mode=True # only init async clients
),
search_tools=search_tools,
ignore_invalid_deployments=True,
)
verbose_proxy_logger.debug(f"updated llm_router: {llm_router}")
# Only create router if we have models or search_tools to route
# Router can function with model_list=[] if search_tools are configured
if len(_model_list) > 0 or search_tools:
verbose_proxy_logger.debug(f"_model_list: {_model_list}")
llm_router = litellm.Router(
model_list=_model_list,
router_general_settings=RouterGeneralSettings(
async_only_mode=True # only init async clients
),
search_tools=search_tools,
ignore_invalid_deployments=True,
)
verbose_proxy_logger.debug(f"updated llm_router: {llm_router}")
else:
verbose_proxy_logger.debug(f"len new_models: {len(models_list)}")
if search_tools is not None and llm_router is not None:
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