Ace-1 is PinchHitter's baseball-optimized AI layer. It's purpose-built to understand MLB stats, translate natural language questions into precise database queries, and return accurate results across 150 years of baseball data.
Under the hood, Ace-1 is powered by Claude — Anthropic's AI model — combined with a custom system prompt, a purpose-built PostgreSQL database, and baseball domain knowledge built up over hundreds of hours of development.
What makes it baseball-specific
— Understands era-aware stats (wRC+, FIP, WAR) and knows when to use them
— Handles name variations, accents, and player ID matching across data sources
— Knows the difference between Lahman, FanGraphs, Statcast, and Retrosheet data
— Era-aware team names, franchise history, and ballpark context built in
— Auto-retries failed queries with self-correction
Ace-1 is the first version. Future versions will bring improved query accuracy, expanded data coverage, and support for more complex multi-step questions.
