I built the LLM benchmarking tool every AI dev needs (in Rust)

Every AI developer has this problem: you're using GPT-4o for something, you wonder if Claude would be better, you know Groq is faster but you don't know how much faster, and you have no easy way to compare. So I built it. It's called llm-bench - a Rust CLI that runs your prompt across every provider in parallel and shows you latency, cost, and output side by side.