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Elise MoreauMay 22, 2026 • 4 min read
Why your diffusion model is slow at batch size 1 (and what actually helps)
TL;DR: Single-image diffusion inference is bottlenecked by kernel launch overhead and attention...
#machinelearning#llm#mlops#pytorch
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Elise Moreau2d ago • 4 min read
The bf16 grad accumulator that killed our SDXL LoRA training
TL;DR: Our SDXL LoRA fine-tune for a Photoroom product photography model trained for six days while....
#machinelearning#pytorch#mlops#computervision
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shinji shimizu3d ago • 4 min read
My high-res image-to-video kept OOMing — turns out I was decoding outside no_grad
A 96GB GPU couldn't run 1024x768 I2V (83.5 GiB peak). The 54 GiB wasn't the model — it was an autogr...
#pytorch#ai#machinelearning#python
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Marco RinaldiMay 22, 2026 • 4 min read
Quantising event-camera networks to run under 1MB on a Cortex-M7
TL;DR: I shrunk a gesture-recognition model for a Prophesee EVK4 event camera from 4.2MB down to...
#machinelearning#computervision#mlops#pytorch
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Marcus Chen3d ago • 4 min read
Prefix caching in vLLM under multi-tenant agent traffic
TL;DR: We turned on vLLM's prefix cache for our agent workloads at Nexus Labs and watched TTFT drop....
#llm#mlops#infrastructure#pytorch
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Marcus Chen2d ago • 4 min read
LLM-as-judge variance broke our DPO training signal for 3 weeks
TL;DR: Our DPO pipeline used a single LLM as the preference judge. Training reward climbed every run...
#machinelearning#mlops#llm#pytorch
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Marco Rinaldi1d ago • 4 min read
QAT vs PTQ on our edge vision model: 6 months of A/B data
TL;DR: We ran post-training quantisation (PTQ) and quantisation-aware training (QAT) side by side on...
#machinelearning#computervision#mlops#pytorch
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Aditya Mehra3d ago • 2 min read
I Built a Diagnostic Toolkit for PyTorch Because I Was Tired of Guessing Why Models Fail
Every time a PyTorch model refuses to learn, the debugging process looks the same: Stare at the...
#pytorch#python#machinelearning#opensource
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Alan West4d ago • 5 min read
Why Your PyTorch Training Crawls on a Beefy GPU (And How to Fix It)
Your GPU sits at 15% utilization and bigger batches don't help? Here's how to diagnose whether you'r...
#pytorch#performance#machinelearning#gpu
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Marco Rinaldi2d ago • 4 min read
Distilling SAM 2 into a 6MB student for industrial inspection
TL;DR: We took Meta's SAM 2 small (around 224M params) and distilled it into a 6.3MB student that...
#computervision#machinelearning#pytorch#mlops
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