Multi-Harness RL Guide Goes Viral as Top Labs Adopt the Method

A guide on multi-harness RL went viral, showing LFM2.5 improving from 42% to 54% with 31% savings in tool calls. Developers say training across multiple harnesses is making single-harness selection obsolete, with models like Kimi K3 and MiniMax M3 reportedly already mixing harnesses.

2026-10-10 ~ 2026-10-11 · 3 related posts

• Multi-harness RL guide: LFM2.5 jumps 42% to 54% with 31% fewer tool calls — SergioPaniego · 2026-10-10
• Multi-harness RL makes harness selection obsolete, claims zainhas — zainhas · 2026-10-11
• A Banger Read on Multi-Harness RL: Training Across Multiple Frameworks — zainhas · 2026-10-11