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Gemma 4 31B vs GLM-5.1

GLM-5.1 is ahead on Arena (1462 vs 1443): in a blind vote people prefer it about 53% of the time.

Gemma 4 31B1443Arena chat · #67 of 416
GLM-5.11462Arena chat · #39 of 416

Arena scores by category

CategoryGemma 4 31BGLM-5.1Ahead
Chat14431462GLM-5.1
Coding13681508GLM-5.1

Scores from blind human votes on Arena. A gap under 10 points is too small to call.

Size and where to use them free

Gemma 4 31BGLM-5.1
Made bygooglezai
Size31.3 B753.9 B (51.7 B active)
4-bit download20 GB458 GB
Use it freefree API on OpenRouter · download and run at home · Apache 2.0 licensedownload and run at home · MIT license

Speed at home

HardwareGemma 4 31BGLM-5.1
RTX 309033 tok/sdoes not fit
RTX 409036 tok/sdoes not fit
RTX 509062 tok/sdoes not fit
RX 7900 XTX34 tok/sdoes not fit
Mac M4 Max 128 GB19 tok/sdoes not fit
Ryzen AI Max+ 395 128 GB9.4 tok/sdoes not fit

Estimates at 4-bit with an 8K context, 64 GB of system RAM for offload, calibrated on 44 real llama.cpp tests.

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