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Head-to-head · Granite

Granite 3.1 2B vs Granite 4.1 3B

Granite 3.1 2B needs ~2.8 GB at Q4_K_M; Granite 4.1 3B needs ~3.3 GB. That ~0.5 GB gap decides which hardware runs each; they differ on 0 of the 14 devices below.

Spec Granite 3.1 2B Granite 4.1 3B
Parameters2.53B3.4B
Memory at Q4_K_M~2.8 GB~3.3 GB
Context window128k128k
LMArenanot rankednot ranked
LicenseApache-2.0Apache-2.0

Which devices run each

A representative spread across the memory range. Tap a verdict for the full breakdown.

Size at each quantization

Quant Granite 3.1 2B Granite 4.1 3B
Q2_K 1.1 GB* 1.4 GB*
Q3_K_M 1.2 GB* 1.7 GB*
Q4_K_M 1.55 GB 2.1 GB
Q5_K_M 1.8 GB* 2.4 GB*
Q6_K 2.1 GB* 2.8 GB*
Q8_0 2.69 GB 3.6 GB
FP16 5.1 GB* 6.8 GB

* derived from bits-per-weight; unstarred sizes are measured GGUF files.

Bottom line

The larger Granite 4.1 3B needs ~3.3 GB; Granite 3.1 2B runs on lighter hardware at ~2.8 GB with more headroom and faster responses. Check each against your exact device: what runs Granite 3.1 2B · what runs Granite 4.1 3B.

More Granite comparisons

FAQ

What is the difference in memory between Granite 3.1 2B and Granite 4.1 3B?

At Q4_K_M, Granite 3.1 2B needs about 2.8 GB and Granite 4.1 3B needs about 3.3 GB, a difference of ~0.5 GB.

Should I run Granite 3.1 2B or Granite 4.1 3B?

Run Granite 4.1 3B if your hardware has the ~3.3 GB it needs and you want maximum quality; run Granite 3.1 2B (~2.8 GB) for lighter hardware, faster responses, and more memory headroom.

Full breakdowns: Granite 3.1 2B · Granite 4.1 3B · all models × devices.

Sources

Memory figures are estimates at Q4_K_M, validated 2026-08-03. See methodology.