MoE training failure details: router collapsed without freezing, multimodal experts suspected

stochasticchasm · x · 2026-09-22

The author asks when 'MOPD' happened, noting only mixRL has been observed publicly. He calls the training logs rough: even by R3, the router died without being frozen, and he wonders whether multimodality caused it, given how awkwardly experts can behave in multimodal models.

Related event: async 4 discloses data mix, MoE router crash sparks discussion(3 posts)→

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