# How fast is Qwen3.5 2B on the iPhone 17?

> Qwen3.5 2B writes about 42 tokens per second on the iPhone 17 in Loci, with the first word in 0.9 s. Measured on 11 iPhones; 90-day sample: 2026-08-08 to 2026-11-06.

Canonical: https://askloci.ai/speed/iphone-17/qwen3-5-2b/
Last updated: 2026-11-06

About 42 tokens per second, much faster than reading. The first word arrives after 0.9 seconds.

**42 tokens per second**

Much faster than reading

First word in 0.9 s · a 300-word answer in about 10 s

### What 42 tokens per second looks like

Sure. Start with the task you have been putting off, while your focus is fresh. Give it one uninterrupted hour, then take a short walk. Answer messages in one batch after lunch, and keep the last half hour to plan tomorrow, so the morning starts without decisions.

Typical range 38–46 tokens per second · 11 iPhones · 90-day sample: 2026-08-08 to 2026-11-06

A19 · 8 GB

## Qwen3.5 2B on other iPhones

- [iPhone 17 Pro Max](https://askloci.ai/speed/iphone-17-pro-max/qwen3-5-2b/) — 51 tok/s · First word 1.2 s · 11 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 17](https://askloci.ai/speed/iphone-17/qwen3-5-2b/) — 42 tok/s · First word 0.9 s · 11 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 16 Pro](https://askloci.ai/speed/iphone-16-pro/qwen3-5-2b/) — 35 tok/s · First word 2.1 s · 13 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 16](https://askloci.ai/speed/iphone-16/qwen3-5-2b/) — 33 tok/s · First word 2.5 s · 10 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 15 Pro](https://askloci.ai/speed/iphone-15-pro/qwen3-5-2b/) — 31 tok/s · First word 2.2 s · 11 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 14 Pro](https://askloci.ai/speed/iphone-14-pro/qwen3-5-2b/) — 26 tok/s · First word 2.9 s · 10 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 15](https://askloci.ai/speed/iphone-15/qwen3-5-2b/) — 26 tok/s · First word 2.9 s · 21 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 14 Pro Max](https://askloci.ai/speed/iphone-14-pro-max/qwen3-5-2b/) — 25 tok/s · First word 3.0 s · 12 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 14](https://askloci.ai/speed/iphone-14/qwen3-5-2b/) — 19 tok/s · First word 3.2 s · 17 iPhones
- [iPhone 12 Pro](https://askloci.ai/speed/iphone-12-pro/qwen3-5-2b/) — 17 tok/s · First word 5.1 s · 12 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 13 Pro Max](https://askloci.ai/speed/iphone-13-pro-max/qwen3-5-2b/) — 17 tok/s · First word 2.6 s · 10 iPhones · 90-day sample: 2026-08-08 to 2026-11-06
- [iPhone 12](https://askloci.ai/speed/iphone-12/qwen3-5-2b/) — 16 tok/s · First word 4.9 s · 15 iPhones
- [iPhone 13 Pro](https://askloci.ai/speed/iphone-13-pro/qwen3-5-2b/) — 15 tok/s · First word 2.7 s · 11 iPhones
- [iPhone 13](https://askloci.ai/speed/iphone-13/qwen3-5-2b/) — 15 tok/s · First word 3.9 s · 46 iPhones

## Other models on the iPhone 17

- [Gemma 4 E2B](https://askloci.ai/speed/iphone-17/gemma-4-e2b/) — 54 tok/s · First word 0.7 s · 18 iPhones
- [Qwen3.5 4B](https://askloci.ai/speed/iphone-17/qwen3-5-4b/) — 19 tok/s · First word 1.9 s · 14 iPhones

- [Every model on the iPhone 17](https://askloci.ai/speed/iphone-17/)
- [Qwen3.5 2B on every device](https://askloci.ai/speed/models/qwen3-5-2b/)

## Run Qwen3.5 2B on your iPhone

Loci is free, needs no account, and keeps every conversation on your device.

- [Download for iPhone](https://apps.apple.com/app/id6762100748)

30-day results and labeled 90-day samples, through November 6, 2026 · 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.
- Results use the last 30 days when enough devices have been measured. Otherwise, labeled 90-day samples include older measurements under the same sample and app-version requirements.
- Each phone speed comes from at least 10 phones of that model. Different phone models and Android chip variants are measured separately. Open a result to see its sample size.
- On phones, answers written in Low Power Mode or Battery Saver, in the background, or with web search or other tools are left out.

[Methods, fixed editions and citations](https://askloci.ai/speed/research/)

[Check model requirements for your device](https://askloci.ai/can-my-device-run/)