The AI scaling debate overlooks that maximizing model FLOP utilization is more critical than buying more GPUs. Frontiers like xAI operate at sub-10% MFU, while historical models achieved 21% to 70% MFU, indicating systemic inefficiencies in scheduling, networking, and cluster management. Anjney Midha argues that AI infrastructure must evolve into efficient, aligned, and responsible systems, with 'output maxing' emerging as a new discipline for frontier AI.
Why AI Scaling Is a Systems Problem, Not Just a GPU Race
Ternary Mamba: Efficient QAT of SSMs from Pretrained Checkpoints
Ternary Mamba achieves 3.61x compression of Mamba-2 from 2,687 to 744 MB using grouped quantization-aware training with knowledge distillation. It reaches 48.1% zero-shot accuracy on 7 tasks in 102M tokens, matching Bi-Mamba within 0.9 percentage points, while avoiding costly from-scratch training.
Ternary Mamba: Pretrained QAT for Efficient SSM Compression
Ternary Mamba achieves 3.61x compression of Mamba-2 using grouped quantization-aware training from a pretrained checkpoint, reducing memory from 2,687 to 744 MB. It reaches 48.1% zero-shot accuracy with only 102M tokens and 4 GPU-hours, matching Bi-Mamba within 0.9 percentage points, while revealing new instability from learnable quantization scales and error accumulation in recurrence.
Marginal Advantage Accumulation for Memory-Driven Agent Self-Evolution
This paper introduces Marginal Advantage Accumulation (MAA), a post-processing architecture that addresses cross-batch inconsistency in memory-driven agent self-evolution. MAA formalizes alignment and comparability as structural conditions, uses differential signals and exponential moving average to accumulate signed evidence per operation, and ensures traceability via semantic identity merging. It outperforms batch-level baselines in 14 out of 16 settings and reduces token consumption by about 75%.
Discriminator-Guided RL Corrects Flow Matching with Data-Aligned Rewards
Discriminator-Guided RL (DRL) uses a pretrained representation space to train a discriminator that separates real data from model-generated samples. Its logit is used as a reward in KL-regularized RL, aligning model outputs with visual and semantic realism without human preferences. DRL improves FID and semantic FD across models like SiT and JiT, and enhances the Pareto frontier between preference and fidelity.
FoMoE Breaks Full-Replica Barrier with Partitioned Expert Layers
FoMoE introduces a system that partitions expert layers across workers to avoid full model replicas, reducing communication costs by up to 1.42x over efficient baselines and 45.44x over DDP. It achieves up to 1.4x throughput speedups via a skip-token mechanism and demonstrates stable routing, with projected benefits extending to 100B-scale models through system modeling.