MiMo RL Training Livestream: Infra Restarts Cost Over $400K

Day three of the MiMo-V2.6 RL training livestream revealed that infra failures caused repeated job restarts, wasting 33% of effective compute for the Pro model and costing over $400K. Former xAI/Gemini engineer dustinvtran shared hands-on experience, noting that no single run goes smoothly when training a deployable checkpoint.

2026-09-19 ~ 2026-09-19 · 2 related posts

• MiMo RL livestream: infra restarts waste 33% of compute, over $400K lost — dustinvtran · 2026-09-19
• Ex-xAI/Gemini engineer on steering MiMo-V2.6: no RL run is launch-and-forget — infoxiao · 2026-09-19