Streaming-first multimodal data pipeline

Building a Truly Scalable Multimodal Data Pipeline: A Streaming-First View

Most “Scalable” Multimodal Pipelines Don’t Survive Foundation-Model Scale A lot of multimodal pipelines claim to scale. In practice, they often depend on at least one of the following: global shuffles (groupBy/join/repartition), materializing massive intermediate datasets, centralized coordination that becomes a bottleneck, or brittle recovery logic (rerun-the-world on failure). That works for demos. It breaks at foundation-model scale. This series is about a different design point: A streaming-first multimodal pipeline that scales linearly with data and hardware — with no global shuffle, and resumable at partition granularity. ...

December 22, 2025 · 4 min · Duo An
Three-stage SiQ-VL curriculum: alignment, instruction, offline CoT

SiQ-VL: A Curriculum for Small VLMs When Compute Is the Hard Constraint

SiQ-VL: A Curriculum for Small VLMs When Compute Is the Hard Constraint Most VLM writeups assume a cluster. SiQ-VL started from the opposite constraint: one (or few) GPUs, and the question was which design choices still buy capability when you cannot buy FLOPs. This post is the consolidated field guide for that project — architecture, token economics, staged training, and offline Chain-of-Thought (CoT) distillation — replacing three earlier notes that said the same thing three ways. Kernel-level throughput (how we pushed Stage-1 from ~15K to ~100K real tokens/s on Blackwell) lives in the companion post: Optimizing VLM Training on One GPU. ...

December 15, 2025 · 6 min · Duo An