iPhone 16 Pro vs iPhone 17 Pro

The iPhone 17 Pro runs Gemma 4 E2B about 38% faster than the iPhone 16 Pro (62 vs 45 tokens per second) and starts answering 0.7 s sooner.

Every model both run

ModeliPhone 16 ProiPhone 17 Pro
Gemma 4 E2B45 tok/sfirst word 1.4 s62 tok/sfirst word 0.7 s

Measured only on the iPhone 16 Pro: Qwen3.5 4B.

Measured only on the iPhone 17 Pro: Apple's on-device model (iOS 27), Qwen3.5 2B and Gemma 4 E4B.

Questions
Is the iPhone 16 Pro faster than the iPhone 17 Pro for AI?
The iPhone 17 Pro is faster on 1 of the the one model both run in Loci. The iPhone 17 Pro runs Gemma 4 E2B about 38% faster than the iPhone 16 Pro (62 vs 45 tokens per second) and starts answering 0.7 s sooner.
Which runs Gemma 4 E2B faster, the iPhone 16 Pro or the iPhone 17 Pro?
The iPhone 17 Pro runs Gemma 4 E2B about 38% faster than the iPhone 16 Pro (62 vs 45 tokens per second) and starts answering 0.7 s sooner.

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. On phones, four characters of text count as one token for every model; on a Mac, Loci counts the model's own tokens. 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.
  • Each phone speed comes from at least 10 phones. Fewer Macs run Loci, so each Mac speed says how many Macs it comes from.
  • On phones, answers written in Low Power Mode or Battery Saver, in the background, or with web search or other tools are left out.