Training Day
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More room to build. Less energy to waste. We’re working on a better
return from the hardware—and power—that drive your AI.
More headroom for real workloads on the hardware you already own.
Focused work on latency, throughput, and memory efficiency.
Repeated correctness and regression checks, with evidence your engineers can inspect.
Judge agent-driven changes by correctness, useful results, and the resources they consume.
The goal: more useful work per watt, so your available power goes further.
Your ideas shouldn’t have to wait for another generation of hardware. We’re focused on the software opportunity: getting more useful work from the compute you already have. Finding that headroom takes careful systems work—and evidence that stands up to scrutiny.
Improvement has to survive repeated testing. We check correctness, compare results under consistent conditions, and look for regressions as the work evolves.
Correctness · controlled comparisonsPower can be the limit before hardware is. We’re focused on better performance per watt: more useful throughput within your power budget, or less energy to complete the same work.
Power efficiency · useful capacityGive another engineer more than a headline number. Inspectable results and clear comparison context make it easier to review a change, understand its limits, and decide what deserves the next run.
Inspectable results · informed decisionsTraining Day focuses on optimizing GPU workloads, CUDA kernels, and agent loops—across the inference stack.
We bring systems optimization and disciplined agent evaluation into the same effort: finding useful changes, testing them carefully, and making the outcome understandable. The value is in the work between an idea and a result you can trust.
Our foundation is local evaluation with results you choose to share. We’re developing it for teams whose next constraint is performance, cost, or confidence in what their agents produce.
Explore the CPU evaluation workbench
FOUNDER AND TEAM
Julie Bush, Founder and engineer
Julie is the sole founder and leads product development and engineering.
Training Day is a product of Sourceflow LLC, registered in California.
LET’S MAKE MORE POSSIBLE
Tell us what you’re running—and whether GPU capacity, power,
or speed is holding you back.