Welcome to phospho!
phospho is a platform to analyse interactions between your LLM app and your users.
- Catch issues before your users do
- Measure business performance to improve your LLM app
- Understand what users actually want to do
- Discover which version of your product is the most successful

How does it work?

- In your LLM app code, log interactions between the user and the app to phospho.
- Define events to detect in the user sessions.
- Understand how to improve the LLM app using the phospho dashboard.
Key features
- Visualize analytics in a dashboard
- Deep-dive in every interaction
- Annotate successful interactions
- Detect events automatically
- (Coming soon) A/B testing and backtesting
Getting started
You can start logging to phospho in minutes.
import phospho
phospho.init()
# Example
input = "Hello! This is what the user asked to the system"
output = "This is the response showed to the user by the app."
# This is how you log an interactions to phospho
phospho.log(input=input, output=output)
No credit card required.
Go to Getting Started for the step by step instructions.
Using OpenAI ? Look at our examples of logging with OpenAI.
Get in touch
We are a team of AI builders enabling observability for LLM-apps at any scale.
Feel free to reach out to contact@phospho.app for technical questions, job opportunities, and any other inquiry.
We are also on Discord. Come and chat with the community!