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+# 🚅 litellm
+a light 100 line package to simplify calling OpenAI, Azure, Cohere, Anthropic APIs 
+
+###### litellm manages:
+* Calling all LLM APIs using the OpenAI format - `completion(model, messages)`
+* Consistent output for all LLM APIs, text responses will always be available at `['choices'][0]['message']['content']`
+* Consistent Exceptions for all LLM APIs, we map RateLimit, Context Window, and Authentication Error exceptions across all providers to their OpenAI equivalents. [see Code](https://github.com/BerriAI/litellm/blob/ba1079ff6698ef238c5c7f771dd2b698ec76f8d9/litellm/utils.py#L250)
+
+###### observability:
+* Logging - see exactly what the raw model request/response is by plugging in your own function `completion(.., logger_fn=your_logging_fn)` and/or print statements from the package `litellm.set_verbose=True`
+* Callbacks - automatically send your data to Helicone, Sentry, Posthog, Slack - `litellm.success_callbacks`, `litellm.failure_callbacks` [see Callbacks](https://litellm.readthedocs.io/en/latest/advanced/)
+
+## Quick Start
+Go directly to code: [Getting Started Notebook](https://colab.research.google.com/drive/1gR3pY-JzDZahzpVdbGBtrNGDBmzUNJaJ?usp=sharing)
+### Installation
+```
+pip install litellm
+```
+
+### Usage
+```python
+from litellm import completion
+
+## set ENV variables
+os.environ["OPENAI_API_KEY"] = "openai key"
+os.environ["COHERE_API_KEY"] = "cohere key"
+
+messages = [{ "content": "Hello, how are you?","role": "user"}]
+
+# openai call
+response = completion(model="gpt-3.5-turbo", messages=messages)
+
+# cohere call
+response = completion("command-nightly", messages)
+```
+Need Help / Support : [see troubleshooting](https://litellm.readthedocs.io/en/latest/troubleshoot)
+
+## Why did we build liteLLM 
+- **Need for simplicity**: Our code started to get extremely complicated managing & translating calls between Azure, OpenAI, Cohere
+
+## Support
+* [Meet with us 👋](https://calendly.com/d/4mp-gd3-k5k/berriai-1-1-onboarding-litellm-hosted-version)
+* Contact us at ishaan@berri.ai / krrish@berri.ai