# Inference, not a JEPA

Canonical: https://owterminal.com/notes/serving-not-training

Author: @iammrriver (https://owterminal.com/authors/iammrriver)

Published: 2026-09-23
Updated: 2026-09-23
Type: analysis

A decode tok/s figure is a serving number. Training a JEPA, or drawing a picture, wants a different machine.

> A tok/s on this desk is a serving number. It is not a JEPA training step, and it is not a picture.

## What the quote is

Every pair on this desk is tokens per second after the prompt is already in. The board is /hardware. That is a chat server. It is not a training step. It is not a picture.



## Not this desk

A training run and a picture want a different machine. The street stacks on the home page are Spark, 5090, 4090, 5060 Ti, M4 Pro, and M5 Max, quoted as serving open weights. A tok/s on /pair/qwen38-flash-exl3-spark does not mean that Spark can train a vision model, and it does not mean the 128 GB is a picture box. Use the number for the job it measures.



## Method and limitations

Legacy edition, predating the current research standard. A proposed rewrite is awaiting editorial review. This is not an original experimental report; historical prices and product statements should not be treated as current guarantees.

## Sources