Fara 1.5 4B

At the default Q4_K_M, 147 of 151 phones have enough estimated usable memory; 134 also reach 3+ tokens/s. On Mac, 54 of 54 exact configurations pass using that quant or a smaller tracked fallback.

Params
4.5B
Family
fara
Released
2026-07
Tags
vision · reasoning

Downloads & memory by quant

The download is only the weights — add KV cache and runtime to get what your phone actually needs. “Memory-fit” only means it can load; “usable” also requires an estimated 3+ tokens/s. Each row uses that row's quant. ★ = recommended.

QuantDownloadMemory neededPhone reality
Q2_K2.1 GB~3.1 GB149 memory-fit · 149 usable
Q3_K_M2.4 GB~3.4 GB149 memory-fit · 149 usable
IQ4_XS2.5 GB~3.5 GB149 memory-fit · 149 usable
Q4_02.6 GB~3.6 GB149 memory-fit · 149 usable
Q4_K_S2.7 GB~3.8 GB149 memory-fit · 136 usable
Q4_K_M ★2.9 GB~4 GB147 memory-fit · 134 usable
Q5_K_M3.3 GB~4.4 GB146 memory-fit · 134 usable
Q6_K3.7 GB~4.8 GB146 memory-fit · 134 usable
Q8_04.5 GB~5.6 GB139 memory-fit · 106 usable

Fara 1.5 4B at Q4_K_M on 151 phones

This table is fixed to the recommended Q4_K_M, on each phone's largest RAM option. Counts for smaller quants above will differ. All phones are shown, sorted by fit and estimated experience; tap one for the full report.

PhoneChip · RAMNeedsSpeedVerdict

~ = bandwidth-based estimate · ✓ = measured on real hardware

Fara 1.5 4B on 54 Mac configurations

Each Mac uses the recommended Q4_K_M at 4K context when it fits, or the largest smaller tracked quant that fits. Each row links to the full report with a macOS-specific setup guide.

MacUnified memoryQuantWorking budgetNeedsEstimated speedVerdict

FAQ

How much RAM do I need to run Fara 1.5 4B on a phone?

At Q4_K_M, Fara 1.5 4B needs ~4GB of usable memory (weights + KV cache + runtime). In practice that means a 6GB+ Android phone or a 8GB+ iPhone — iOS lets a single app use less of its RAM than Android does.

How fast does Fara 1.5 4B run on a flagship phone?

On the Xiaomi 18 Fold (Xiaomi XRING O3) it runs at ~17.7 tokens/s at Q4_K_M, estimated from memory bandwidth. Anything above ~8 tokens/s feels smooth for chat.

Can an iPhone run Fara 1.5 4B?

Yes — the iPhone Air runs it at ~11.9 tokens/s at Q4_K_M, using 4GB of its ~7.8GB usable memory.

What is the best quantization of Fara 1.5 4B for mobile?

Q4_K_M (2.9GB download) is the size/quality sweet spot of the 9 quants available. Total memory needed is ~4GB once the KV cache and runtime are counted — the download size alone understates it.

How many phones can run Fara 1.5 4B?

147 of the 151 phones we track have enough estimated usable memory at Q4_K_M; 134 also reach our usable-speed threshold of 3 tokens/s, and 107 run smoothly. Memory-fit alone does not mean a good experience.

Which Macs can run Fara 1.5 4B?

54 of the 54 exact Mac configurations we track have enough estimated working memory. Each Mac uses the recommended Q4_K_M when it fits, or the largest smaller tracked quant that fits, and separates installed unified memory, the macOS reserve, and estimated speed.

What is Fara 1.5 4B good for on a phone?

It's tagged for vision, reasoning. At 4.5B parameters, it balances quality and speed for daily use.

Similar models

Fara 1.5 9BFara 1.5 27BAREX Turbo 4BGemma 3 4BNanbeige 4.2 3B