Can OvisOCR2 0.8B run on iPhone 16 Pro?
YES — Runs great
Grade S · 100/100 · formula estimate
What this means
Our estimate says OvisOCR2 0.8B should fit comfortably on your iPhone 16 Pro.
Download the Q4_K_M version, which is about 0.6 GB. We expect it to use about 1.3 GB of the roughly 5.2 GB available to a model on this phone.
At the estimated speed, a roughly 300-word answer may take about 9 seconds to finish.
This result is calculated from the phone and model specifications. It has not been measured on this exact phone and setup.
45tokens/s
estimated · instant
1.3GB
needed at Q4_K_M
Q4_K_M
quant checked
S
grade · 100/100
needs 1.3 GBusable 5.2 GB
Apple A18 Pro8 GB RAMMetal
See how fast it feels
Estimated at 45 tokens/s — instant. A ~300-word reply takes about 9 seconds on this phone.
Where the memory goes
| Component | Detail | GB |
|---|---|---|
| Model weights | Q4_K_M GGUF (0.6 GB) + mmap overhead | 0.6 |
| KV cache | 4K context window | 0.1 |
| Runtime | llama.cpp + app overhead | 0.6 |
| Total needed | at Q4_K_M, 4K context | 1.3 |
| Usable on iPhone 16 Pro | 8 GB RAM − iOS reserve (jetsam limit) | 5.2 |
| Headroom | left for the OS and your other apps | 3.9 |
Pick your quant
| Quant | Download | Verdict | Speed |
|---|---|---|---|
| Q2_K | 0.4 GB | ✓ Runs great | ~67.5 tokens/s |
| IQ4_XS | 0.5 GB | ✓ Runs great | ~54 tokens/s |
| Q3_K_M | 0.5 GB | ✓ Runs great | ~54 tokens/s |
| Q4_0 | 0.5 GB | ✓ Runs great | ~54 tokens/s |
| Q4_K_S | 0.5 GB | ✓ Runs great | ~54 tokens/s |
| Q4_K_M BEST HERE | 0.6 GB | ✓ Runs great | ~45 tokens/s |
| Q5_K_M | 0.6 GB | ✓ Runs great | ~45 tokens/s |
| Q6_K | 0.7 GB | ✓ Runs great | ~38.6 tokens/s |
| Q8_0 | 0.8 GB | ✓ Runs great | ~33.8 tokens/s |
Get it running in 3 steps
1
Install PocketPal from the App Store — free, no account needed.
2
Download "OvisOCR2 0.8B Q4_K_M" in the in-app model hub — 0.6 GB, use Wi-Fi. Search Hugging Face for
bartowski/ATH-MaaS_OvisOCR2-GGUF and pick the Q4_K_M file.3
Set context to 4K and enable Metal — expect ~45 tokens/s on this phone.
Related checks
More on iPhone 16 Pro
OvisOCR2 0.8B on other phones