Thursday night I let a benchmark run while I slept. By Friday morning Gemma 4 E4B had answered fifteen needle-in-a-haystack questions across four context sizes on my RTX 5050 laptop. The recall numbers were better than I expected. The latency numbers were worse. Here's both, with the ~30 lines of Python to reproduce it on your own hardware. I keep seeing "Gemma 4 E4B has a 128K context window" repeated as if it were a single property, like "the engine is 3.5 litres". It is not a single property.
