"VibeThinker-3B"

VibeThinker-3B: Small Model, Big Reasoning — Beating Opus 4.5?

A new 3-billion-parameter model, VibeThinker-3B, is claiming to outreason the mighty Opus 4.5 in verifiable tasks. This isn't about raw output; it's about the transparent, step-by-step logic. How did a compact model achieve this feat?

Jun 23, 2026