iPhone 15 vs iPhone 15 Pro
The iPhone 15 Pro runs Gemma 4 E2B about 18% faster than the iPhone 15 (41 vs 35 tokens per second) and starts answering 1.3 s sooner.
Every model both run
| Model | iPhone 15 | iPhone 15 Pro |
|---|---|---|
| Gemma 4 E2B | 35 tok/sfirst word 3.1 s | 41 tok/sfirst word 1.9 s |
| Qwen3.5 2B | 26 tok/sfirst word 3.0 s | 30 tok/sfirst word 2.3 s |
Every model on the iPhone 15Every model on the iPhone 15 ProCompare other devices
Questions
- Is the iPhone 15 faster than the iPhone 15 Pro for AI?
- The iPhone 15 Pro is faster on 2 of the 2 models both run in Loci. The iPhone 15 Pro runs Gemma 4 E2B about 18% faster than the iPhone 15 (41 vs 35 tokens per second) and starts answering 1.3 s sooner.
- Which runs Gemma 4 E2B faster, the iPhone 15 or the iPhone 15 Pro?
- The iPhone 15 Pro runs Gemma 4 E2B about 18% faster than the iPhone 15 (41 vs 35 tokens per second) and starts answering 1.3 s sooner.
- Which runs Qwen3.5 2B faster, the iPhone 15 or the iPhone 15 Pro?
- The iPhone 15 Pro runs Qwen3.5 2B about 17% faster than the iPhone 15 (30 vs 26 tokens per second) and starts answering 0.6 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.