Looped Transformer Research and Compute-Matched Scaling

teortaxesTex · x · 2026-07-20

This shares progress on Looped Transformers / Loopie. The author notes that looped Transformers cannot be compared solely by parameter count: under the same pretraining budget, repeated layers amplify compute cost, so fair comparison requires matching actual training cost. They propose the Loopie Recipe: convert a non-looped MoE reference model into a looped seed, then use layer-loop to repeat each layer twice, trading saved memory for larger microbatch to keep optimizer-step time equal to baseline. This compute-matched scaling claims fairer comparison between looped and non-looped architectures, and demonstrates a training scheme scalable to large MoE.

Related event: Loopie Cyclic Transformer Matches 30B Baselines with Fractional Tokens(7 posts)→

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