Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Gemma 4 31B
65
Grok Code Fast 1
39
Pick Gemma 4 31B if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Coding
+29.2 difference
Gemma 4 31B
Grok Code Fast 1
$0 / $0
$0.2 / $1.5
N/A
172 t/s
N/A
2.81s
256K
256K
Pick Gemma 4 31B if you want the stronger benchmark profile. Grok Code Fast 1 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Gemma 4 31B is clearly ahead on the provisional aggregate, 65 to 39. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Grok Code Fast 1 is also the more expensive model on tokens at $0.20 input / $1.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Gemma 4 31B. That is roughly Infinityx on output cost alone. Gemma 4 31B is the reasoning model in the pair, while Grok Code Fast 1 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.
Gemma 4 31B is ahead on BenchLM's provisional leaderboard, 65 to 39.
Grok Code Fast 1 has the edge for coding in this comparison, averaging 70.8 versus 41.6. Gemma 4 31B stays close enough that the answer can still flip depending on your workload.
Estimates at 50,000 req/day · 1000 tokens/req average.
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