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LiteLLM - Local Caching

Caching completion() and embedding() calls when switched on​

liteLLM implements exact match caching and supports the following Caching:

  • In-Memory Caching [Default]
  • Redis Caching Local
  • Redis Caching Hosted
  • GPTCache

Quick Start Usage - Completion​

Caching - cache Keys in the cache are model, the following example will lead to a cache hit

import litellm
from litellm import completion
from litellm.caching import Cache
litellm.cache = Cache()

# Make completion calls
response1 = completion(
    model="gpt-3.5-turbo", 
    messages=[{"role": "user", "content": "Tell me a joke."}]
    caching=True
)
response2 = completion(
    model="gpt-3.5-turbo", 
    messages=[{"role": "user", "content": "Tell me a joke."}],
    caching=True
)

# response1 == response2, response 1 is cached

Caching with Streaming​

LiteLLM can cache your streamed responses for you

Usage​

import litellm
from litellm import completion
from litellm.caching import Cache
litellm.cache = Cache()

# Make completion calls
response1 = completion(
    model="gpt-3.5-turbo", 
    messages=[{"role": "user", "content": "Tell me a joke."}], 
    stream=True,
    caching=True)
for chunk in response1:
    print(chunk)
response2 = completion(
    model="gpt-3.5-turbo", 
    messages=[{"role": "user", "content": "Tell me a joke."}], 
    stream=True,
    caching=True)
for chunk in response2:
    print(chunk)

Usage - Embedding()​

  1. Caching - cache Keys in the cache are model, the following example will lead to a cache hit
import time
import litellm
from litellm import embedding
from litellm.caching import Cache
litellm.cache = Cache()

start_time = time.time()
embedding1 = embedding(model="text-embedding-ada-002", input=["hello from litellm"*5], caching=True)
end_time = time.time()
print(f"Embedding 1 response time: {end_time - start_time} seconds")

start_time = time.time()
embedding2 = embedding(model="text-embedding-ada-002", input=["hello from litellm"*5], caching=True)
end_time = time.time()
print(f"Embedding 2 response time: {end_time - start_time} seconds")