diff --git a/docs/my-website/docs/proxy/config_settings.md b/docs/my-website/docs/proxy/config_settings.md
index b518fe7da86d..886d2eca1a6a 100644
--- a/docs/my-website/docs/proxy/config_settings.md
+++ b/docs/my-website/docs/proxy/config_settings.md
@@ -538,7 +538,7 @@ router_settings:
 | DEFAULT_IMAGE_WIDTH | Default width for images. Default is 300
 | DEFAULT_IN_MEMORY_TTL | Default time-to-live for in-memory cache in seconds. Default is 5
 | DEFAULT_MANAGEMENT_OBJECT_IN_MEMORY_CACHE_TTL | Default time-to-live in seconds for management objects (User, Team, Key, Organization) in memory cache. Default is 60 seconds.
-| DEFAULT_MAX_LRU_CACHE_SIZE | Default maximum size for LRU cache. Default is 16
+| DEFAULT_MAX_LRU_CACHE_SIZE | Default maximum size for LRU cache. Default is 64
 | DEFAULT_MAX_RECURSE_DEPTH | Default maximum recursion depth. Default is 100
 | DEFAULT_MAX_RECURSE_DEPTH_SENSITIVE_DATA_MASKER | Default maximum recursion depth for sensitive data masker. Default is 10
 | DEFAULT_MAX_RETRIES | Default maximum retry attempts. Default is 2
diff --git a/litellm/constants.py b/litellm/constants.py
index addd659be73d..441694333919 100644
--- a/litellm/constants.py
+++ b/litellm/constants.py
@@ -285,7 +285,9 @@
 REPEATED_STREAMING_CHUNK_LIMIT = int(
     os.getenv("REPEATED_STREAMING_CHUNK_LIMIT", 100)
 )  # catch if model starts looping the same chunk while streaming. Uses high default to prevent false positives.
-DEFAULT_MAX_LRU_CACHE_SIZE = int(os.getenv("DEFAULT_MAX_LRU_CACHE_SIZE", 16))
+# Shared maxsize for functools.lru_cache usage across hot paths.
+# Defaulted to 64 to avoid cache thrash in multi-model production workloads.
+DEFAULT_MAX_LRU_CACHE_SIZE = int(os.getenv("DEFAULT_MAX_LRU_CACHE_SIZE", 64))
 _REALTIME_BODY_CACHE_SIZE = 1000  # Keep realtime helper caches bounded; workloads rarely exceed 1k models/intents
 INITIAL_RETRY_DELAY = float(os.getenv("INITIAL_RETRY_DELAY", 0.5))
 MAX_RETRY_DELAY = float(os.getenv("MAX_RETRY_DELAY", 8.0))