26tokens per second
Much faster than reading
First word in 2.1 s · a 300-word answer in about 17 s
A19 Pro · 12 GB
How fast is Gemma 4 E4B on the iPhone 17 Pro?
About 26 tokens per second, much faster than reading. The first word arrives after 2.1 seconds.
The same for the iPhone 17 Pro Max and iPhone Air, with the same A19 Pro chip.
Other models on the iPhone 17 Pro
Every model on the iPhone 17 ProGemma 4 E4B on every device
Run Gemma 4 E4B on your iPhone
Loci is free, needs no account, and keeps every conversation on your device.
Last 30 days, through · updated daily
How these speeds are measured
- Every number comes from real chats in Loci, timed on the device that wrote the answer, with Loci's default settings.
- Tokens per second is how fast an answer is written once it starts. Four characters of text count as one token, for every model and device. Reading pace is about 5.
- First word is how long an answer takes to start after you send a message. Longer conversations take longer.
- Each device counts once. The large number is the median; the typical range covers the middle half of devices.
- Answers written in Low Power Mode or Battery Saver, in the background, or with web search or other tools are left out.