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ishaan-jaff 2023-08-28 22:16:22 -07:00
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docs/my-website/docs/caching/caching.md
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# LiteLLM - Caching
liteLLM implements exact match caching. It can be enabled by setting
1. `litellm.caching`: When set to `True`, enables caching for all responses. Keys are the input `messages` and values store in the cache is the corresponding `response`
## LiteLLM Caches `completion()` and `embedding()` calls when switched on
2. `litellm.caching_with_models`: When set to `True`, enables caching on a per-model basis.Keys are the input `messages + model` and values store in the cache is the corresponding `response`
liteLLM implements exact match caching and supports the following Caching:
* In-Memory Caching [Default]
* Redis Caching Local
* Redic Caching Hosted
* GPTCache
## Usage
1. Caching - cache
Keys in the cache are `model`, the following example will lead to a cache hit
```python
litellm.caching = True
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."}])
response2 = completion(model="gpt-3.5-turbo", messages=[{"role": "user", "content": "Tell me a joke."}])
# response1 == response2, response 1 is cached
# with a diff model
response3 = completion(model="command-nightly", messages=[{"role": "user", "content": "Tell me a joke."}])
# response3 == response1 == response2, since keys are messages
```
2. Caching with Models - caching_with_models
Keys in the cache are `messages + model`, the following example will not lead to a cache hit
```python
litellm.caching_with_models = True
# Make completion calls
response1 = completion(model="gpt-3.5-turbo", messages=[{"role": "user", "content": "Tell me a joke."}])
response2 = completion(model="gpt-3.5-turbo", messages=[{"role": "user", "content": "Tell me a joke."}])
# response1 == response2, response 1 is cached
# with a diff model, this will call the API since the key is not cached
response3 = completion(model="command-nightly", messages=[{"role": "user", "content": "Tell me a joke."}])
# response3 != response1, since keys are messages + model
```