Can Qwen3.8-Flash-Next run on iPhone 15 Pro?
NO — Won't fit
Formula estimate
What this means
None of the versions we checked fit safely on this phone. The checked version needs about 107.7 GB, while we estimate that the model can use about 5.2 GB.
Try a smaller model, or use this model on a device with more memory.
This result is calculated from the phone and model specifications. It has not been measured on this exact phone and setup.
−102.5GB short
memory that doesn't exist here
107.7GB
needed at IQ4_XS
IQ4_XS
quant checked
needs 107.7 GBusable 5.2 GB · short 102.5 GB
Apple A17 Pro8 GB RAMMetal
Three ways forward
1
Try a smaller quant
No quant of Qwen3.8-Flash-Next fits this phone — even the smallest is too big. Options 2 and 3 are your real choices.
3
Run it in the cloud
The full Qwen3.8-Flash-Next, no download, at data-center speed — pay per token.
provider recommendations coming later
Where the memory goes
| Component | Detail | GB |
|---|---|---|
| Model weights | IQ4_XS GGUF (93.7 GB) + mmap overhead | 98.4 |
| KV cache | 4K context window | 8.8 |
| Runtime | llama.cpp + app overhead | 0.6 |
| Total needed | at IQ4_XS, 4K context | 107.7 |
| Working budget | 8 GB RAM − iOS reserve (jetsam limit) | 5.2 |
| Headroom | memory shortfall | −102.5 |
Pick your quant
| Quant | Download | Verdict | Speed |
|---|---|---|---|
| IQ1_S | 72.5 GB | ✕ Won't fit | won't fit |
| IQ4_XS | 93.7 GB | ✕ Won't fit | won't fit |
Related checks
More on iPhone 15 Pro
Qwen3.8-Flash-Next on other phones