Pi Labs: AI Platform for Custom LLM Evaluation Systems

baoshi.rao

Introduction

Pi Labs is an AI platform designed to automate the creation of evaluation systems (evals) for AI applications, particularly those involving Large Language Models (LLMs) and agents. Visit Pi Labs.

What is Pi Labs?

Pi Labs offers a platform to build custom scoring models that align with user feedback and prompts, ensuring highly accurate and consistent evaluations. It integrates seamlessly with existing tools and features Pi Scorer, a fast and accurate foundation model for comprehensive metrics and observability.

How to Use Pi Labs

Build Your Scoring System: Work with Pi's copilot to define metrics using prompts, PRDs, or user feedback.
Evaluate AI Applications: Use the scoring system for offline evaluations, online inference, training data quality, model optimization, and agent control flows.

Core Features

Automated Evaluation Systems: Build evals that match user feedback and prompts.
Accurate Scoring: More consistent than LLM-as-judge methods.
Tool Integrations: Works with Sheets, PromptFoo, GRPO, and CrewAI.
Pi Scorer: A foundation model with 32K context window, faster and more accurate than Deepseek and GPT 4.1.
Fast Processing: Scores 20+ custom dimensions in under 100ms.

Use Cases

Evaluating user feedback and prompts for AI applications.
Scoring news articles and summaries.
Assessing AI agent performance (e.g., Trip Planning Agent).
Evaluating blog posts based on stylistic requirements.
Conducting offline evaluations and online inference.

Pricing

Free Tier: $0 (includes $10 in credits for 25 million tokens).
Pay-as-You-Go: $0.40 per million tokens.

FAQ

What is Pi Labs?: An AI platform for custom evaluation systems.
How accurate is Pi Scorer?: More accurate than Deepseek and GPT 4.1.
Integrations?: Supports Sheets, PromptFoo, GRPO, and CrewAI.
Free Tier?: Yes, with $10 in credits.
Modalities?: Currently text-only (others coming soon).